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Current Electricity (part 2)

German physicist, professor at Munich. Ohm was led to his law by an analogy between the conduction of heat: the electric field is analogous to the temperature gradient, and the electric current is analogous to the heat flow.
Ohm's law is not a fundamental law of nature. There are a number of commonly used circuit elements which do not obey this law. They have one or more of the following properties:
1. V depends on I non-linearly.
2. The relationship between V and I depends on the sign of V for the same absolute value of V.
3. The relation between V and I is non-unique, that is, for the same current I, there is more than one value of voltage V.

Jan 8, 2013 17:43 IST
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Current Electricity (part 2)
Current Electricity (part 2)

What is Ohm’s law? What are the limitations of Ohm’s law? How numerical problems will get solved by using various formulae? To get these answers, go through the video. German physicist, professor at Munich. Ohm was led to his law by an analogy between the conduction of heat: the electric field is analogous to the temperature gradient, and the electric current is analogous to the heat flow.

To get Current Electricity (part 1) Click Here

This video will also help you to understand ohm’s law, various graphs and limitations of ohm’s law concerning steady electric currents.

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