Electromagnetic Induction questions
610 published questions with worked solutions.
- A bar magnet of length L is dropped inside a vertical copper pipe of length ( <L); it will experience an acceleration q such that
- The magnetic flux linked with the coil is proportional to
- In electromagnetic induction the induced charge is independent of
- Does steady current pass through the coil?
- A horizontal straight conductor placed along north-south direction falls under gravity, then there is
- The current induced in a 100 , coil, when the magnetic flux decreases from 1 Wb to 0.1 Wb in 0.1 s, is
- A metal wire of area of cross-section 1.8 10^ -7 m^2 and specific resistance 9 10^ -6 , m is bent into a square loop and magnetic...
- A straight conductor of length 1.5 m moves in a uniform magnetic field of induction 5 10^ -3 T, with a velocity of 5 m/s in a...
- A rectangular coil of 100 turns and dimensions of 10 cm 5 cm is placed perpendicular to a uniform magnetic field of induction 0.1...
- A coil of radius 1 cm and 100 turns is placed in a magnetic field of 10^ 6 gauss, such that its plane makes an angle 30° with the...
- A coil of 50 turns is pulled in 0.02 s between the pole of a magnet, where its area includes 31 10^ -6 Wb to a place where its...
- If a magnet is moved towards a coil, the magnitude of induced emf in a coil depends upon
- A copper ring is arranged horizontally and a bar magnet is dropped through the ring with its length along the axis of the ring....
- The magnetic field is parallel to the given surface area, the magnetic flux through the surface area is
- Magnetic flux through the coil is independent on
- If two identical co-axial circular coils carry the same current in the same sense and the coils approach each other, it is...
- The number of turns in the coil are doubled, the e.m.f will get
- A horizontal square loop of length and resistance R moves perpendicular to vertical uniform magnetic field B with velocity v, the...
- Lenz's law is consequence law of conservation of:
- A magnet drops down a long vertical copper tube, its velocity as it falls down the tube:
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