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potential difference of 220 V is appliedross a rheostat AB of 12000 ohm. TheItmeter V has a resistance of 6000 ohm andB is one fourth of the distance of AB. Theror in the reading of voltmeter ispproximately -220VWWWWWWWWWWWWW(V) 60001211) 27%6000(3) 40%(2) 10%(4) 15%

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