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NIKITA PUBLICATION-ELECTROMAGNETIC INDUCTION-MCQs
- The alternaing current of equivalent value of I(0)//sqrt(2) is
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- Alternating current can be measured with the help of
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- The r.m.s. value of an alternating current is
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- The maximum value of A.C. emf in a complete cycle is
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- A voltmeter reads V volts in an A.C. circuit then V is
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- AC measuring instruments measures
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- If an AC ammeter reads I A in an AC circuit, then the peak value of th...
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- The average value of alternating current over a complete cycle ...
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- Alternating current can not be measured by D.C. Ammeter because
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- Name the device which converts mechanical energy into electrical energ...
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- In a simple circuit with resistance, phase between AC emf and AC curre...
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- The working of dynamo is based on principle of
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- A coil of cross-sectional area A having n turns is placed in uniform m...
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- If the instantaneous current in a circuit is given by I=2 cos (omegat+...
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- The frequency of ac mains in India is
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- The peak value of alternating voltage is 423 V. its root mean square v...
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- A generator produces a time varying voltage given by V=240 sin 120 t, ...
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