The rod of unit length is moving at 30 o through a magnetic field of 1 T. If the velocity of rod is 1 m/s, then induced emf in the rod will be given by
Question # 3
In A.C. inductor behaves as
Question # 4
Which of the following converts electrical energy into mechanical energy.
Question # 5
A real transformer does not change.
Question # 6
Electromagnetic induction obeys law of conservation
Question # 7
If the coil is wound on iron core, the flux through it.
Question # 8
The current induced can be increased by:
Question # 9
In a coil current change from 2 to 4 A in .05 s . If the average induced emf is 8 V then coefficient of self-inductance is:
Question # 10
the core of transformer is laminated so reduce.
Question # 11
Electromagnetic induction is exactly according to law of:
Question # 12
The winding of the electromagnet in motor are usually called.
Question # 13
By winding the coil around a less magnetic core, self induction.
Question # 14
Commutator was invented in
Question # 15
Lenz's law presented in
Question # 16
Lenz's law is a consequence of the law of conservation of
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