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The reading of the ideal voltmeter in the adjoining diagram will be

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The reading of the ideal voltmeter in the adjoining diagram will be
image
A. `4 V`
B. `8 V`
C. `12 V`
D. `14 V`
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Correct Answer - B
(b) Current flowing in the circuit `i= (E)/(R ) = (10 - 4)/(20 + 10) = (1)/(4) A`
`P.D.` across `AC = (1)/(5) xx 20 = 4 V`
`P.D.` across `AN = 4 + 4 = 8 V`
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