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Question

# Which of the following statements are correct about the circuits shown in the figure where 1Ω and 0.5Ω are internal resistances of the 6 V and 12 V batteries respectively

A
The potential at point P is 6 V
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B
The potential at point Q is – 0.5 V
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C
If a voltmeter is connected across the 6 V battery, it will read 7 V
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D
If a voltmeter is connected across the 6 V battery, it will read 5 V
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Solution

## The correct options are B The potential at point Q is – 0.5 V C If a voltmeter is connected across the 6 V battery, it will read 7 Vi=12−64.5+1.5=1 A VP=4×1=4V VQ=−0.5× 1 = -0.5 V V across 6 V=6+i×1 6+1 ×1 = 7 V

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