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Question Answer

► MCQ Exam ON : Electromagnetic Inductiin Physics

In system international the unit of mutual inductance is


1)  
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5)  

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Important MCQ on Related Subject

📌     The efficiency of the transformer is defined as
📌     Transformer is the device that is being used in
📌     The converse of the process of magnetic effect of current is
📌     A current carrying coil placed in magnetic field experiences force, this law is stated by
📌     The quantity that remains unchanged in a transformer is
📌     Changing current in one coil induces emf in another this phenomena is known as
📌     An emf of 5.6V is induced in a coil while current in coil is decreased from 100A to 20A in 0.02s its mutual induction will be
📌     Energy that is stored in an inductor can be represented by
📌     Michael faraday observed that emf was set up in a conductor in the year of
📌     Electro motive force induced by the motion of conductor across magnetic field is called
📌     Changing current in a coil produces emf in the same coil is known as
📌     A helium nucleus enters perpendicularly in magnetic field B with velocity then magnetic force acting on it will be
📌     According to the lenz's law if you pull the magnet away then the induced current will
📌     The practical application of the mutual induction is
📌     Law that states direction of induced current is always as to oppose the change which causes the current is
📌     In alternative current generator AC current reverses its direction
📌     The self induced emf sometimes also known as
📌     Change of current of one ampere/sec causes emf of 1 volt will be equal to
📌     The induced current can be increased by
📌     When moving conductor was connected to galvanometer then the shown quantity was
📌     The turn ratio(r) for a step up transformer is
📌     Alternative current generator is basically based upon
📌     The dimensions of the rate of change of flux are equivalent to those of
📌     The induced current depends upon the speed with which conductor moves and
📌     The magnetic field is 0.6T and the rate of change of area is 0.8m<sup>2</sup>/s when N = 1 the induced emf would be
📌     Transformer is the device that works on the principle of
📌     If the turns ratio of transformer is 10 it means that
📌     Back emf is 120V when motor is turning at 1680 rev/min, and the back emf when motor rotates at 3360 rev/min will be
📌     Emf produced in the conductor is known as
📌     Square coil of side 16 cm having 200 turns rotating in magnetic field of 0.05T with peak emf of 12V will produce angular velocity of

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