EASY
12th CBSE
IMPORTANT
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On what factors does the magnitude of the emf induced in the circuit due to magnetic flux depend?

Important Questions on Electromagnetic Induction

EASY
12th CBSE
IMPORTANT
A wire cuts across a flux of 0.2×102 Wb in 0.12 s. What is the emf induced in the wire?
EASY
12th CBSE
IMPORTANT
A metallic wire 1 m in length is moving normally across a field of 0.1 T with a speed of 5 ms-1. Find the emf between the ends of the wire.
EASY
12th CBSE
IMPORTANT
How would you detect the presence of the magnetic field on an unknown planet?
EASY
12th CBSE
IMPORTANT
When current flowing in an inductive circuit is switched off, will the induced current be in the direction of main current or in opposite direction?
EASY
12th CBSE
IMPORTANT
Give the expression for the emf induced between the ends of a metal conductor moving perpendicular to a uniform magnetic field.
EASY
12th CBSE
IMPORTANT
A glass rod of length l moves with velocity v perpendicular to a uniform magnetic field B. What is the induced emf in the rod?
EASY
12th CBSE
IMPORTANT
A coil of area A is kept perpendicular in a uniform magnetic field B. If the coil is rotated by 180°, what will be the change in flux?
EASY
12th CBSE
IMPORTANT
A bicycle generator creates a 3.0 V, when the bicycle is travelling at a speed of 9.0 km h1. How much emf is generated when the bicycle is travelling at a 15 km h1?