- The concept of current and voltage and electrical resistance of electric current:
- If you connect a copper wire with a source of electric power such as battery, thus leading to the movement of electrons inside the wire, and from that deduce a definition of electrical current. Power Supply: - is the amount of charge passing through a conductor under the influence of an external force resulting from a battery electrical source. The direction of movement opposite to the direction of the electrons (the direction of current from positive to negative) and represent the following equation method of calculating the value of the voltage v = k ÷ n, where: - T: - current (amp) as: - electric charge (coulomb) N: - Time (seconds) Example: - Calculate the amount of electricity if it is known that the amount of electric charge passing in the old connector 4 seconds equal to 8 Colom. Solution: - data - to be a current and known value of the shipment and the shipment time, where (k) equal to 8 Colom, and the amount of time (n) 4 seconds to apply the current law v = k ÷ n T = 8 4 ÷ T = 2 mA types of power supply 1 - DC: - is the trend that the remaining value and direction consistent with the passage of time, and from sources of direct current accumulator gray (battery) used in the automotive voltage (voltage supply) needs into force of the electric current to the presence of force affect the electrons, and these can be an influential force is the potential difference or electromotive force or voltage, and all the labels have similar meaning. It can be defined - as a force that forces the electrons (charges) to move in a particular direction through a conductor, which caused the entry into force of electricity. Known and potential difference: - Balchgl effort to move electric charge from a point less effort to the highest point effort. And can be achieved according to the following formula: - P = u ÷ k where: - P: - Voltage Supply (Balfolt) u: - work done (Paljol) as: - The amount of electric charge (Balcolom) Example: - Calculate the potential difference between two points in the electrical system if the work done Jolla 60 to move the electric charge of 20 Coulomb. Data: - u = 60 Gul k = 20 the Coulomb solution: - P = u ÷ k P = 60 ÷ 20 q = 3 volt electrical resistance of known electrical resistance: - Objection article for the passage of electric current therein, and there are several factors depend on the resistance to any a connector. 1 - type of the material of which Mosul 2 - the length of Mosul, 3 - an area of Mosul, section 4 - the temperature of Mosul, and these factors can be represented by the following equation and by which they can find if you know the value of the resistance data the equation m = (m n × s) ÷ Q where: - M: - Resistance to Mosul - in ohms () for: - the length of Mosul - meter (m) Q: - sectional area of Mosul (in meters square) (m 2) M N - resistivity of the conductor (. m) Example: - Calculate resistance of copper wire from a length of 300 meters and the area of cross section 10 × 610 m 2, and it is known that the resistivity of copper, 1.78 × 810. M solution: - m = (m n × s) ÷ Q m = (1.78 × 810 × 300) ÷ 10 × 610 m 2 m = 0.534 ohm applications on Ohm's law the text of the Ohm's law (if passed an electric current in a conductor, the value of this current directly proportional to the voltage applied between the parties to this connector and inversely with the resistance). And is called Ohm's law relative to the world, George Ohm. Can be represented by Ohm's law the following equation E = P ÷ m, where T: - current in amperes P: - voltage Balfolt M: - Resistance in ohms example: - arrived resistance wire of iron $ 10 ohms with a source of electric Folatith 100 volts, what is the value of current flowing in the resistance. Solution: - according to Ohm's law, the E = P ÷ m T = 100 ÷ 10 c = 10 mA elements of the circuit (resistance, Mwasa, File) resistors: - the electrical resistance is the reluctance of material for the passage of electric current through it, and use the resistance as an electrical used in electrical circuits for various purposes. Types of resistors used in circuit resistance fixed: - is the resistance of a constant value does not change, and the value of the resistance written on the resistance the system colors, system numbers and types of resistors fixed resistors carbon resistors wired resistors layered metal resistance changing - is the resistance, which can change its value within a certain range of delivery methods resistors in the circuit 1 - connect the succession of 2 - connect the equivalent of 3 - connected to a compound containing such participation in brief: - The definition of resistance to electricity - a unit measure - the impact of Gul - the importance of electrical resistance - Types of materials in terms of resistance - resistance relationship Balmouselah - Types of resistance - how to determine the value of the resistance - Methods of delivery of the electrical resistance of resistors Electrical Resistance is a physical property means an interception (disability) for the passage of material through which electric charges. And resistance occurs when the electrons hit the mobile atoms in the material and release energy in the form of heat "effect Gul." Another definition of the resistance Electrical resistance = voltage / electric current R = V / I, a form of Ohm's law and a unit of measurement of resistance is measured electrical resistance in ohms and has the symbol Ω and reads Omega OMEGA definition Ohm Ohm is the resistance arising in the circuit occurs when voltage of $ Volta one measuring current of 1 volt and one amp 1 ampere. Was named Ohm to this unit in honor of the physicist, the German Georg Ohm Gourge ohm sporting image: Ohm = Volt / Ampere Ohm = Volt / Amp and can be obtained on the unity of the resistance by using a specific path of the current, which produces a resistance of ohms and one if Sri electric current through the column of mercury is equal to an intermediate section with an area of 1 mm 2 and a length of 1.063 meters mmmm2 Gul effect results from the passage of electric current in a metal carrier (or vector Omi) emission of heat, and the impact of this phenomenon is called Jules. In some cases, control the amount of this flow (heating), but in other cases dissipate this energy and produce undesirable effects. Given the energy produced by the impact Gul, the following equation: the importance of the electrical resistance Trjh importance of electrical resistance for the following reasons: 1. Protection, although they cause a waste of part of the energy they are necessary to protect some parts of the electrical circuits Some damage (melt) if passed by the stream is greater than a certain amount, such as those used in cars, which are called (FUSE), and some are cut off power automatically when you exceed the amount of specific, such as electricity meter used inside your home. 2. Control the intensity of current passing through it. 3. Control is also a difference in voltage between both ends. Types of materials in terms of resistance 1. Materials with very high resistance (insulation), such as glass, wood, plastic, air, 2. Materials with medium resistance (semiconductor) such as silicon and germanium 3. Materials with low resistance (connectors), such as copper, gold and silver 4. Materials with resistance to virtually non-existent: such as semiconductors, high-quality relationship is an inverse relationship Balmouselah resistance, good Valmousel be a small resistance and vice versa. Therefore, if you look at the electric wire that we use in our daily life you find a component of the metal part of the current and allows the operation of this part is covered with material such as plastics are high-resistance does not apply when the current from the outside
- If you connect a copper wire with a source of electric power such as battery, thus leading to the movement of electrons inside the wire, and from that deduce a definition of electrical current. Power Supply: - is the amount of charge passing through a conductor under the influence of an external force resulting from a battery electrical source. The direction of movement opposite to the direction of the electrons (the direction of current from positive to negative) and represent the following equation method of calculating the value of the voltage v = k ÷ n, where: - T: - current (amp) as: - electric charge (coulomb) N: - Time (seconds) Example: - Calculate the amount of electricity if it is known that the amount of electric charge passing in the old connector 4 seconds equal to 8 Colom. Solution: - data - to be a current and known value of the shipment and the shipment time, where (k) equal to 8 Colom, and the amount of time (n) 4 seconds to apply the current law v = k ÷ n T = 8 4 ÷ T = 2 mA types of power supply 1 - DC: - is the trend that the remaining value and direction consistent with the passage of time, and from sources of direct current accumulator gray (battery) used in the automotive voltage (voltage supply) needs into force of the electric current to the presence of force affect the electrons, and these can be an influential force is the potential difference or electromotive force or voltage, and all the labels have similar meaning. It can be defined - as a force that forces the electrons (charges) to move in a particular direction through a conductor, which caused the entry into force of electricity. Known and potential difference: - Balchgl effort to move electric charge from a point less effort to the highest point effort. And can be achieved according to the following formula: - P = u ÷ k where: - P: - Voltage Supply (Balfolt) u: - work done (Paljol) as: - The amount of electric charge (Balcolom) Example: - Calculate the potential difference between two points in the electrical system if the work done Jolla 60 to move the electric charge of 20 Coulomb. Data: - u = 60 Gul k = 20 the Coulomb solution: - P = u ÷ k P = 60 ÷ 20 q = 3 volt electrical resistance of known electrical resistance: - Objection article for the passage of electric current therein, and there are several factors depend on the resistance to any a connector. 1 - type of the material of which Mosul 2 - the length of Mosul, 3 - an area of Mosul, section 4 - the temperature of Mosul, and these factors can be represented by the following equation and by which they can find if you know the value of the resistance data the equation m = (m n × s) ÷ Q where: - M: - Resistance to Mosul - in ohms () for: - the length of Mosul - meter (m) Q: - sectional area of Mosul (in meters square) (m 2) M N - resistivity of the conductor (. m) Example: - Calculate resistance of copper wire from a length of 300 meters and the area of cross section 10 × 610 m 2, and it is known that the resistivity of copper, 1.78 × 810. M solution: - m = (m n × s) ÷ Q m = (1.78 × 810 × 300) ÷ 10 × 610 m 2 m = 0.534 ohm applications on Ohm's law the text of the Ohm's law (if passed an electric current in a conductor, the value of this current directly proportional to the voltage applied between the parties to this connector and inversely with the resistance). And is called Ohm's law relative to the world, George Ohm. Can be represented by Ohm's law the following equation E = P ÷ m, where T: - current in amperes P: - voltage Balfolt M: - Resistance in ohms example: - arrived resistance wire of iron $ 10 ohms with a source of electric Folatith 100 volts, what is the value of current flowing in the resistance. Solution: - according to Ohm's law, the E = P ÷ m T = 100 ÷ 10 c = 10 mA elements of the circuit (resistance, Mwasa, File) resistors: - the electrical resistance is the reluctance of material for the passage of electric current through it, and use the resistance as an electrical used in electrical circuits for various purposes. Types of resistors used in circuit resistance fixed: - is the resistance of a constant value does not change, and the value of the resistance written on the resistance the system colors, system numbers and types of resistors fixed resistors carbon resistors wired resistors layered metal resistance changing - is the resistance, which can change its value within a certain range of delivery methods resistors in the circuit 1 - connect the succession of 2 - connect the equivalent of 3 - connected to a compound containing such participation in brief: - The definition of resistance to electricity - a unit measure - the impact of Gul - the importance of electrical resistance - Types of materials in terms of resistance - resistance relationship Balmouselah - Types of resistance - how to determine the value of the resistance - Methods of delivery of the electrical resistance of resistors Electrical Resistance is a physical property means an interception (disability) for the passage of material through which electric charges. And resistance occurs when the electrons hit the mobile atoms in the material and release energy in the form of heat "effect Gul." Another definition of the resistance Electrical resistance = voltage / electric current R = V / I, a form of Ohm's law and a unit of measurement of resistance is measured electrical resistance in ohms and has the symbol Ω and reads Omega OMEGA definition Ohm Ohm is the resistance arising in the circuit occurs when voltage of $ Volta one measuring current of 1 volt and one amp 1 ampere. Was named Ohm to this unit in honor of the physicist, the German Georg Ohm Gourge ohm sporting image: Ohm = Volt / Ampere Ohm = Volt / Amp and can be obtained on the unity of the resistance by using a specific path of the current, which produces a resistance of ohms and one if Sri electric current through the column of mercury is equal to an intermediate section with an area of 1 mm 2 and a length of 1.063 meters mmmm2 Gul effect results from the passage of electric current in a metal carrier (or vector Omi) emission of heat, and the impact of this phenomenon is called Jules. In some cases, control the amount of this flow (heating), but in other cases dissipate this energy and produce undesirable effects. Given the energy produced by the impact Gul, the following equation: the importance of the electrical resistance Trjh importance of electrical resistance for the following reasons: 1. Protection, although they cause a waste of part of the energy they are necessary to protect some parts of the electrical circuits Some damage (melt) if passed by the stream is greater than a certain amount, such as those used in cars, which are called (FUSE), and some are cut off power automatically when you exceed the amount of specific, such as electricity meter used inside your home. 2. Control the intensity of current passing through it. 3. Control is also a difference in voltage between both ends. Types of materials in terms of resistance 1. Materials with very high resistance (insulation), such as glass, wood, plastic, air, 2. Materials with medium resistance (semiconductor) such as silicon and germanium 3. Materials with low resistance (connectors), such as copper, gold and silver 4. Materials with resistance to virtually non-existent: such as semiconductors, high-quality relationship is an inverse relationship Balmouselah resistance, good Valmousel be a small resistance and vice versa. Therefore, if you look at the electric wire that we use in our daily life you find a component of the metal part of the current and allows the operation of this part is covered with material such as plastics are high-resistance does not apply when the current from the outside
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