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The induced emf can be produced in a coil by A. moving the coil with uniform speed inside uniform magnetic field B. moving the coil with non uniform speed inside uniform magnetic field C. rotating the coil inside the uniform magnetic field D. changing the area of the coil inside the uniform magnetic field Choose the correct answer from the options given below: (1) B and C only (2) A and C only (3) C and D only (4) B and D only
- B and C only
- A and C only
- C and D only
- B and D only
Correct answer: A and C only
Solution
Induced emf is generated when there is a change in magnetic flux through a coil. Both moving the coil with uniform speed (option A) and rotating the coil (option C) effectively change the orientation or position of the coil within the magnetic field, leading to a change in magnetic flux and thus inducing emf.
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