MCQs: The force on a wire inside a magnetic field increase when
Category: Physics MCQs, Published by: teswesm
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MCQs: When the surface is held perpendicular to the magnetic lines of force, the number of lines of force is
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MCQs: The information of users which are read by the ATM machines are stored on
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MCQs: When a current passes through a conductor, it produces a magnetic field around it. This is discovered by
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MCQs: The electric power delivered to the secondary circuit is equal to the power supplied to the primary circuit in a/an
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MCQs: Change in no. of magnetic field lines induces
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MCQs: A step-up transform has a turns ratio of 1: 200. An alternating supply of 15 V is connected across the primary coil. The secondary voltage should be
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MCQs: The current-carrying loop inside the magnetic field rotate due to the
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MCQs: At city substation, the AC is stepped down to
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MCQs: A step done transformer has a turns ratio of 100: 1. An ac voltage of amplitude 170 V is applied to the primary. If the current is 1 mA in the primary, the current in the secondary should be
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MCQs: Generators produce electric current due to the movement of wires near
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MCQs: An electrical switch that opens and closes under the control of another electrical circuit is called
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MCQs: The direction of the force on a current-carrying wire in a magnetic field can be found by using
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MCQs: A power station generates 600 MW of electrical power which is fed to a transmission line. If the input voltage is 300 Kv, then what current would flow in the transmission line?
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MCQs: The process of generating an induced current in a circuit by changing the number of magnetic lines of force passing through it is called
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MCQs: A generator inside a hydroelectric dam uses electromagnetic induction to convert the mechanical energy of a spinning turbine into
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MCQs: In A.C generator increasing the no. of turns in the coil
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MCQs: The Electromotive force (EMF) developed by the generator depends upon
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MCQs: The total force acting on the armature can be increased by increasing the
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MCQs: In the transformer, if the secondary voltage is more than the primary voltage then it is called
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