Question: A voltmeter has a sensitivity of 1000 ?/V reads 200 V on its 300 V scale. When connected across an unknown resistor in series with a millimeter. When the milliammeter reads 10 mA. The actual resistance of the unknown resistor will be?
Options
A : 20 k?
B : 18.57 k?
C : 21.43 k?
D : 22.76 k?
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