Read the following two statements. (A) Emf can be induced by changing magnetic field. (B) Emf must be induced when a conductor is moved inside magnetic field.

Read the following two statements. (A) Emf can be induced by changing

1.	Read the following two statements. (A) Emf can be induced by changing magnetic field. (B) Emf must be induced when a conductor is moved inside magnetic field.
Answer» Both A and B are true. A is true but Bis false. B is true and A is false Both A and B are false. Solution :STATEMENT A is true because by changing magnetic field we can change magnetic flux linked with a coil and hence emf can be INDUCED. Statement B is false because emf is induced in a moving conductor INSIDE magnetic field only when LENGTH, velocity and magnetic field are mutually PERPENDICULAR or have mutually perpendicular components. If conductor is moving parallel to magnetic field then emf will not be induced.

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Read the following two statements. (A) Emf can be induced by changing magnetic field. (B) Emf must be induced when a conductor is moved inside magnetic field.

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