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Two batteries, one of emf 18 volts and i...

Two batteries, one of emf 18 volts and internal resistance `2 Omega` and the other fo emf 12 volts and internal resistance `1 Omega`, are connected as shown. The voltmeter `V` will record a reading of

A

15 volt

B

30 volt

C

14 volt

D

18 volt

Text Solution

Verified by Experts

The correct Answer is:
C
`V = (E_(1)r_(2) + E_(2)r_(1)/(r_(1) + r_(2))) =(18 xx 1 + 12 xx 2)/3 = 42/3 = 14 V`
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