which derivations will come from chapter current electricity in exams?

Asked by Shomyajit Misra Misra | 16th Apr, 2014, 07:45: AM

Expert Answer:

There are no certainties in any examination as to which questions might come, however the following derivations are very important from the exam point of view:
1) Expression of current density in the form of Ohm's law
2) Equivalent resistance of a combination of resistors in series or parallel
3) The balance condition in a wheatstone bridge
4) Internal resistance of a cell by potentiometer

Answered by  | 16th Apr, 2014, 09:36: AM

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