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Two batteries, one of emf 18 V and inter...

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

A

15V

B

14V

C

30V

D

18V

Text Solution

Verified by Experts

The correct Answer is:
B
Voltmeter reading = equivalent emf ` = (epsi_1 r_2 + epsi_2 r_1)/(r_1 + r_2) = ((18 xx 1 + 12 xx 2))/((2+1)) = 14 V`
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