Solved papers for JEE Main & Advanced JEE Main Paper (Held On 9 April 2014)
done JEE Main Paper (Held On 9 April 2014) Total Questions - 1
question_answer1) A d.c. main supply of e.m.f. 220 V is connected across a storage battery of e.m.f. 200 V through a resistance of \[1\Omega .\] The battery terminals are connected to an external resistance ?R?. The minimum value of 'R', so that a current passes through the battery to charge it is:
[JEE Main Online Paper ( Held On 09 Apirl 2014 )