Categories > Current Electricity > Different Measuring Instruments > The resistance of 10 metre long potentiometer wire is 1ohm/meter. A cell of e.m.f.2.2 volts and a high resistance box are connected in series to this wire. The value of resistance taken from resistance box for getting potential gradient of 2.2 millivolt/metre will be

Current Electricity

Question: The resistance of 10 metre long potentiometer wire is 1ohm/meter. A cell of e.m.f.2.2 volts and a high resistance box are connected in series to this wire. The value of resistance taken from resistance box for getting potential gradient of 2.2 millivolt/metre will be


1) $790\,\Omega $
2) $810\,\Omega $
3) $990\,\Omega$
4) $1000\,\Omega $
Solution: Explanation: No Explanation
Different Measuring Instruments Potentiometer Meter Bridge

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