Electricity & Megnetism
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Combination of capacitance in series and parallel circuit
There are two combinations of capacitors series and parallel circuits. In series circuits, the total capacitance is less than the smallest capacitance value because the effective plate separation increases. In parallel circuits, the total capacitance is the sum of individual…
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Difference between Plug and Socket
The difference between Plug and Socket is given here. Plugs and Sockets are two completely different items, however, the latter is part of plugs. A plug is made up of plugs and a socket, and when joining it allows the…
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Ampere’s Circuital law
What is ampere’s law? According to Ampere’s law “The line integral of magnetic field B along a closed path due to current is equal to the product of the permeability of free space and the current enclosed by the closed…
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What is Ohm’s law class 10?
Ohm’s law states that: “The current flowing through a conductor is directly proportional to the potential difference across its ends provided the physical state such as temperature etc. of the conductor remains constant.”The formula for ohm’s law is “V=IR”. Ohm…
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Difference between thermistor and thermocouple
Thermistor and thermocouple both can be used to measure temperature. Basic difference between thermistor and thermocouple is that “A thermistor can only be used at fairly moderate temperatures. A thermocouple is used to measure typically high temperatures.” Thermistor definition A…
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Capacitance of a Capacitor
The capacitance of a capacitor is the ability of a capacitor to store an electric charge per unit of voltage across its plates of a capacitor. Capacitance is found by dividing electric charge with voltage by the formula C=Q/V. Its…
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Maxwell’s Equations: Derivation in Integral and Differential form
Maxwell’s equations are the basic equations of electromagnetism which are a collection of Gauss’s law for electricity, Gauss’s law for magnetism, Faraday’s law of electromagnetic induction, and Ampere’s law for currents in conductors. Maxwell equations give a mathematical model for…
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What are some applications of a step up and step down transformer?
Applications of a step up transformer For the Transmission of electric power from a power station to the consumer, voltage is stepped up by using a step-up transformer. It minimizes the power loss in the transmission line. Applications of a…
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Why would power distribution systems be less effective without alternating current?
Most larger power distribution systems are AC. The power is transmitted from power stations at a much higher voltage to minimize the power loss. At the end of the line where the consumer is located, the voltage level is reduced…
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Inductance of a toroid formula derivation and examples
What is toroid? The solenoid bent into a circular shape is called a toroid. Inductance of a toroid derivation Consider a toroid having a rectangular cross-sectional area. The inner radius of the toroid is ‘a’ while the outer radius is…