CBSE Class 12-science Answered
which derivations will come from chapter current electricity in exams?
Asked by Shomyajit Misra Misra | 16 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 | 16 Apr, 2014, 09:36: AM
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