MCQs: The loop in magnetic field rotates due to
Category: Physics MCQs, Published by: teswesm
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MCQs: If the coil is placed perpendicular to field lines then the number of lines passing through the coil is
Category: Physics MCQs, Published by: teswesm
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MCQs: If a transformer is used to supply voltage to a 15 V model train which draws a current of 0.7 A. If the voltage of the A.C source is 210 V, the current in the primary should be
Category: Physics MCQs, Published by: teswesm
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MCQs: If the AC source is 240 V and a transformer supplies 12 V to a model train which draws a current of 0.8 A then primary current is
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MCQs: The phenomenon of induction of induced current in one coil due to change of current in a neighboring coil is called
Category: Physics MCQs, Published by: teswesm
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MCQs: If we increase the number of loops, the turning effect would
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MCQs: A coil of wire consisting of many loops is known as
Category: Physics MCQs, Published by: teswesm
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MCQs: As per Michael Faraday, if the forefinger points the direction of the magnetic field, the middle finger in the direction of the current, then the thumb would indicate the direction of
Category: Physics MCQs, Published by: teswesm
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MCQs: If the current in one coil becomes steady then magnetic field lines become
Category: Physics MCQs, Published by: teswesm
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MCQs: At the generating station, the AC voltage is
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MCQs: The type of temporary magnet, which is created when current flows through a coil is called an
Category: Physics MCQs, Published by: teswesm
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MCQs: An ideal transformer dissipates by itself
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MCQs: If we grip the coil with our right hand by curling our fingers in the direction of the conventional current, our thumb will indicate the coil's
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MCQs: The power is transmitted over long distances at high voltage to minimize the
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MCQs: Through a conductor, an electric current produces a
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MCQs: The direction of induced Electromotive force (EMF) in a circuit is under the law of conservation of
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MCQs: The direction of induced current in a circuit is always such that it opposes the cause that produces it. This law was introduced by
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MCQs: By reducing the current through the cable, power loss in the form of heat dissipation can be
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MCQs: A practical application of mutual induction is called
Category: Physics MCQs, Published by: teswesm
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MCQs: Transformers are used to
Category: Physics MCQs, Published by: teswesm
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