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Two cells, each of e.m.f. E and internal...

Two cells, each of e.m.f. E and internal resistance r are connected in parallel between the resistance R . The maximum energy given to the resistor will be, only when-

A

`R= r/2`

B

R = r

C

R = 2r

D

R= 0

Text Solution

Verified by Experts

The correct Answer is:
A
For maximum energy
Internal resistance = Load resistance-
`r//2 = R rArr R = r/2`
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