JEE PHYSICS MCQ: CURRENT ELECTRICITY

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Application +4 | -1

The number of dry cells, each of e.m.f.

1.5\,\,volt

and internal resistance

0.5\,\,ohm

that must be joined in series with a resistance of

20\,\,ohm

so as to send a current of

0.6\,\,ampere

through the circuit is

View answer and explanation

Correct option: C

Option C (10) is correct because it is the number of cells required to achieve the specified current through the given resistance, calculated using Ohm's law for series circuits.

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