Home
Class 12
PHYSICS
Statement-1: A vertical iron rod has cio...

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

(a) Statement I is true, Statement II is ture, Statement II is a correct explanation for Statement I.

B

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

C

( c) Statement I is True, Satement II is false.

D

(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.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    CENGAGE PHYSICS ENGLISH|Exercise Single Correct Answer Type|18 Videos

  • ELECTROMAGNETIC INDUCTION

    CENGAGE PHYSICS ENGLISH|Exercise Multiple correct Answer Type|3 Videos

  • ELECTROMAGNETIC INDUCTION

    CENGAGE PHYSICS ENGLISH|Exercise Archives Multiple Correct|3 Videos

  • ELECTRICAL MEASURING INSTRUMENTS

    CENGAGE PHYSICS ENGLISH|Exercise M.C.Q|2 Videos

  • ELECTRON,PHONTS,PHOTOELECTRIC EFFECT & X-RAYS

    CENGAGE PHYSICS ENGLISH|Exercise dpp 3.3|15 Videos

Similar Questions

Explore conceptually related problems

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 rectangular coil ABCD which is rotated at a constant angular veolcity about an horizontal as shown in the figure. The axis of rotation of the coil as well as the magnetic field B are horizontal. Maximum current will flow in the circuit when the plane of the coil is

Statement-1 : A conducting rod is given a velocity v subsequently the rod slides on the smooth conducting rails in horizontal plane. The magnetic field is perpendicular to the plane of figure. Statement-2 : In the above situation energy lost by rod will be equal to work done by magnetic force.

Solve the above question if the length of rod is 2L and resistance 2r and it is rotating about its centre.Both ends of the rod now touch the conductiing ring

A circular ring of radius a is made from a wire having resistance (lambda) per unit length. The ring is mounted on a car such that ring remains vertical. The care moves along a horizontal circle of radius R and completes n revolutions per minute. The horizontal component of earth's magnetic field be H, The emf induced in the ring is

The North pole of a magnet is falling on a metallic ring as shown in the figure. The direction of induced current, if looked from upside in the ring will be

Solve problem 15 if the length of rod is 2L and resistance 2r and it is rotating about its center. Both ends of the rod now touch the conducting ring.

Solve problem 15 if the length of rod is 2L and resistance 2r and it is rotating about its center. Both ends of the rod now touch the conducting ring.

Two coils A and B are wound on the same iron core as shown in figure. The number of turns in the coil A and B are N_(A) and N_(B) respectively. Identify the correct statement

Two circular coils A and B are facing each other in shown figure. The current I through A can be alterned

Home
Profile