A circular loop of flexible conducting material is kept in a magnetic field direction perpendicularly into its plane. By holding the loop at diametrically opposite points its is suddenly stretched outwards, then

No current is induced in the loop

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Anti-clockwise current is induced

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Clockwise current is induced

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Only emf is induced

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C Clockwise current is induced
As the field is perpendicular to the plane so the coil has certain $f l u x$ .
As we stretch it outward the area $(A)$ of coil got decreased so $f l u x = B A$ got reduced and according to Lenz Law it should oppose the decrease in flux so induced current should produce $i n w a r d$ field to support original field so $i n d u c e d$ current will be $c l o c k w i s e$ .
Option C is correct.

Suggest Corrections

Similar questions

A conducting square loop of side L and resistance R moves in its plane with a uniform velocity $v$ perpendicular to one of its sides. It is sorrounded by a magnetic field B which is constant in time and space and is pointing perpendicularly into the plane of the loop. The current induced in the loop is

Q. A triangular loop is placed in a dot

⨀

magnetic field as shown in figure. The direction of induced current is clockwise in the loop if magnetic field is

Q. A conducting loop is placed in a uniform magnetic field with its plane perpendicular to the field. An emf is induced in the loop if :

Q. A conducting loop confined in a plane is rotated in its own plane with some angular velocity. A uniform and constant magnetic field exist in the region. Find the current induced in the loop

Join BYJU'S Learning Program