Electromagnetic Induction questions
610 published questions with worked solutions.
- The induced e. m. f. in a rod of length l translating at a speed v making an angle with length l and perpendicular to magnetic...
- The expression for the induced e. m. f. contains a negative sign [e=- d dt ]. What is the significance of the negative sign?
- In electromagnetic induction, the induced charge is independent of
- If the flux associated with a coil changes at the rate of 240 weber in every 2 minutes, then the induced e. m. f. is
- If the magnetic field linked with the coil is reduced to half, then the e. m. f induced in coil will be ______
- 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...
- Flux passes through coil changes from 2 10^ -3 Wb to 3 10^ -3 Wb during 25 s. The induced e. m. f. is
- Lenz's law provides a relation between
- Whenever the magnetic flux linked with a coil changes, an induced e. m. f. is produced in the circuit. This e. m. f. is present
- A conducting loop is placed in a uniform magnetic field with plane perpendicular to the field. An e. m. f. is induced in the...
- If bar magnet is being moved towards a stationary coil (i) rapidly (ii) slowly, e. m. f induced in the coil is in
- Eddy currents are produced when
- The self inductance of a coil is 5 mH. If a current of 2 A is flowing in it, then the magnetic flux produced in the coil will be
- The self inductance associated with a coil is independent of ________
- In a coil, the e. m. f. induced by a change in current from 4 A to 8 A in 0.1 second is 8 V. The inductance of the coil is
- A current through a choke coil of self inductance 2 H decreases at the rate of 0.5 A/s. The e. m. f. developed across the coil is
- Magnetic flux of 10 microweber is linked with a coil. When current of 2.5 mA flows through it, the self inductance of the coil is
- Whenever current in a coil is changed, an e. m. f. is induced in the same coil. This property of coil is due to ___________
- When a current of 5 A flows in the primary coil, then the flux linked with the secondary coil is 200 weber. The value of...
- With the decrease of current in the primary coil from 2 ampere to zero value in 0.01 second, the e. m. f. generated in the...
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