Question

36. Two resistors R, and R, are connected in parallel
across a cell of emf E and internal resistance r. If
R, is increased then current through battery varies
as

​

Answer 1

Explanation:

R1 αnd R2 are parallel

Therefore, Req=R1×R2/R1+R2

Req and r is in series

I=E/R1×R2/R1+R2+r

If R1 increases

Then Req increases

Therefore, current decrease

Answer 2

Answer:

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