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Question

Two batteries, one of emf 18 V and internal resistance 2 Ω the other of emf 12 V and internal resistance 1 Ω, are connected as shown. The voltmeter V will record a reading of:
1239488_869777af2f014cdbb4b7bf75731fc3b4.png

A
15 V
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B
30 V
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C
14 V
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D
18 V
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