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A magnetic field can be produced by...

A magnetic field can be produced by

A

a moving charge

B

a changing electric field

C

none of them

D

both of them.

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • A: magnetic field is produced by moving charges(s). R: The magnetic field in the central region of a solenoid is uniform.

    A
    If both Assertion & Reason are true and the reason is the correct explanation of the assertion then mark (1)
    B
    If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark 2.
    C
    If assertion is true statement but Reason is false, then mark (3)
    D
    If both Assertion and Reason are false statements, then mark (4)

  • Statement-1 Electrostatic field lines are discontinuous at the surface of a conductor Statement-2 Magnetic field lines produced by permanent magnets are never discontinuous

    A
    Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-9
    B
    Statement-1 is True, Statement-2, is True, Statement-2 is NOT a correct explanation for Statement-9
    C
    Statement-1 is True, Statement-2 is False
    D
    Statement-1 is False, Statement-2 is True

  • Production of magnetic field can be done by:

    A
    Changing electric field
    B
    Moving charge only
    C
    Both (a) and (b)
    D
    Changing polarity of the wire in electric field

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