Home
Class 12
PHYSICS
shown in the figure is a small loop that...

shown in the figure is a small loop that is kept co-axially with the bigger loop. If the slider moves from `A` to `B`, then

A

Current flow in both the loops will be in opposite senses.

B

Clockwise current in loop 1 and anti - clockwise current in loop 2 flow

C

No current flows in loop 2

D

Clockwise current flows in loop 2

Text Solution

Verified by Experts

The correct Answer is:
B

When the slider moves towards B the resistance of the circuit ( bigger loop ) decreases . There the current in the bigger loop increasese. Thereasing current results in increasing flux ( `phi alpha i)` linked in the smaller coil. Consequently induced emf will be generated along the smaller loop creating an induced current so as to oppose the increase in flux . Therefore the current flows anticlock wise in the inner loop.
Promotional Banner

Similar Questions

Explore conceptually related problems

A non - popular loop of conducting wire carrying a current I is placed as shown in the figure . Each of the straighrt sections of the loop is of the length 2a . The magnetic field due to this loop at the point P(a, 0 ,a) points in the direction

A circular loop of radius 0.3 cm lies parallel to amuch bigger circular loop of radius 20 cm. The centre of the small loop is on the axis of the bigger loop. The distance between their centres is 15 cm. If a current of 2.0 A flows through the smaller loop, then the flux linked with bigger loop is

A circular loop of radius 0.3 cm lies parallel to amuch bigger circular loop of radius 20 cm. The centre of the small loop is on the axis of the bigger loop. The distance between their centres is 15 cm. If a current of 2.0 A flows through the smaller loop, then the flux linked with bigger loop is

A wire is bent to form the double loop shown in figure. There is a uniform magnetic field directed into the plane of the loop. If the magnitude of this field is decreasing current will flow from:

The two loops shown in the figure have their planes parallel to each other . A clockwise current flows in the loop X as viewed from X towards Y. The two coils will repel each other if the current in the loop X is :

There is a current carrying straight wire of infinite length having current 5A. If a square loop of side 10 cm is kept coplanar with the wire as shown in figure the magnetic flux to the square loop is

A loop shown in the figure is immersed in the varying magnetic field B=B_0t , directed into the page. If the total resistance of the loop is R , then the direction and magnitude of induced current in the inner circle is

A constant current I flows through a long straight wire as shown in figure. A square loop starts moving towards righ with as constant speed v . a Find induced emf produced i the loop as a function x b. If total resistance of the loop is R , then find induced current in the loop,

A rectangular loop and a circular loop are moving out of a uniform magnetic field to a field-free region with a constant velocity 'v' as shown in the figure . Explain the which loop do you expect the induced emf to the constant during the passage out of the field region . The magnetic field is normal to the loops .

A rectangular loop is placed near a current carrying straight wire as shown in the figure. If the loop is rotated about an axis passing throught one of its sides find the direction of induced current in the loop.