If the external resistance is equal to the internal
resistance of a cell of emf E. The p.d. across its
terminal is
1) E/2
2) E
3) 2E
4) zero
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If the external resistance is equal to the internal
resistance of a cell of emf E. The p.d. across its
terminal is
1) E/2
2) E
3) 2E
4) zero
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Answer:
3)2E
Explanation:
r=r
E=I[2R]
I=2RE
P.D across cell - P.D across R
iR=2E
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