A potential difference of 220 V is maintained across a 12000 ohm rheos – McqOptions

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1.	A potential difference of 220 V is maintained across a 12000 ohm rheostat, as shown in the figure. The voltmeter has a resistance of 6000 ohm and point c is at one-fourth of the distance from a to b, Therefore, the reading of the voltmeter will be
A.	32 V
B.	36 V
C.	40 V
D.	42 V
Answer» D. 42 V

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