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ECAT Pre General Science Physics Chapter 15 Electromagnetic Induction Online Test
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Total Questions30
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Time Allowed30
ECAT Pre General Science Physics Chapter 15 Electromagnetic Induction Online Test
In a coil current change from 2 to 4 A in .05 s. If the average induced emf is 8V then coefficient of self-inductance is:
When there is no relative motion between the magnet and coil, the galvanometer indicated
Referring to above figure, a changing current in coil P can be produced:
The induced current in the loop can be increased by:
The induced emf in a coil is proportional to:
A coil of constant area is placed in a constant magnetic field. An induced current is produced in the coil when:
Micheal Faraday and joseph Henry belong respectively to:
Referring to above figure, due to change in current in the coil P, the change in magnetic flux:
The phenomenon of generation of induced emf is called:
The unit of induced emf is:
An emf is set up in a conductor when it:
The practical application of the phenomenon of Mutual induction is
When a conductor is moved across a magnetic field, the redistribution of charge sets up:
The phenomenon of generation of induced emf is called
The induced current in a conductor depends upon:
A coil of constant area is placed in a constant magnetic field. An include current is produced in the coil when:
Michael Faraday and Joseph Henry belong respectively to
When a conductor moved with its length parallel to the lines of magnetic fled:
Referring to above figure, current in the coil P grows from zero to its maximum value
The induced current in a conductor depends upon
The change of magnetic flux through a circuit will produce
In magnet-coil experiment, emf can be produced by:
Referring to above figure, current in coil P falls from its maximum value to zero
What is the coefficient of mutual inductance, when the magnetic flux changes by 2 X 10-2Wb, and change in current is 0.01 A?
Motional emf is called motional:
Self inducede e.m.f. is also called
Split rings act as
The device in which induced emf is statically induced emf is:
A metal road of length 1m is moving at a speed of 1 ms-1In a direction making angle of 30º with 0.5 Y magnetic field. The emf produced in the rod is:
Step up transformer has a transformation ratio of 3:2. What is the voltage in secondary, if voltage in primary is 30V:
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