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Statement-1: A vertical iron rod has coi...

Statement-1: A vertical iron rod has coil of wire wound over it at the bottom end. An alternating current flows in the coil. The rod goes through a conduction ring as shown in the figure. The ring can float at a certain height above the coil.
Statement -2: In the above situation a current is induced in the ring which interacts with the horizontal components of the magnetic field to produce an average force in the upward direction.

A

Statement I is true, Statement II is true, Statement II is a correct explanation for Statement I.

B

Statement I is true, Statement II is true, Statement II NOT a correct explanation for Statement I.

C

Statement I is True, Statement II is false.

D

Statement I is false, Statement II is true.

Text Solution

Verified by Experts

The correct Answer is:
A
(a) The induced current in the ring will ineract with horizontal component of magnetic field and both will repel each other. This repulsion will balance the weight of the ring.
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Knowledge Check

  • Statement-1: A vertical iron rod has ciol of wire wound over it at the bottom end. An alternating current flows in the coil. The rod goes through a conduction ring as shwon in the figure. The ring can float at a certain height above the coil. Statement -2: In the above situation a current is inuced in the ring which interacts with the horizontal components of the magnetc field to produce an aberage force in the upward direction.

    A
    Statement-1 is true, statement-2 is true, Statement-2 is a correct explanation for Statement-1
    B
    Statement-1 is true, statement-2 is true, Statement-2 is NOT a correct explanation for Statement-1
    C
    Statement-1 is true, statement-2 is False
    D
    Statement-1 is false, Statement-2 is True.

  • STATEMENT-1 A vertical iron rod has a coil of wire wound over it at the bottom end.An alternating current flows in the coil.The rod goes through a conducting ring as shown in the figure.The ring can float at a certain height above the coil. because STATEMENT-2 In the above situation, a current is induced in the ring which interacts with the horizontal component of the magnetic field to produce an average force in the upward direction

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

  • Statement-1: When resistance of rheostat is increased, clockwise current is induced in the ring. Statement-2: Magnetic flux through the ring is out of the page and decreasing.

    A
    Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.
    B
    Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1.
    C
    Statement-1 is true, statement-2 is false.
    D
    Statement -1 is false, statement -2 is true.

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