A space consists of two uniform magnetic fiel | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The magnetic flux $\phi$ through the loop is the sum of the flux due to the inward magnetic field (left side) and the outward magnetic field (righ

Vedclass · Accepted Answer

If the loop is moved towards the left,the current is initially anticlockwise.

Vedclass · Answer

(B) The magnetic flux $\phi$ through the loop is the sum of the flux due to the inward magnetic field (left side) and the outward magnetic field (right side). Let the area of the loop in the left region be $A_L$ and in the right region be $A_R$. Since the loop is symmetric,$A_L = A_R = A/2$. The total flux is $\phi = B_L A_L - B_R A_R$ (taking inward as positive). If the loop moves to the right,the area in the right region $(A_R)$ increases and the area in the left region $(A_L)$ decreases. Thus,the outward flux increases. According to Lenz's law,the induced current will create a magnetic field to oppose this increase in outward flux,meaning it will create an inward magnetic field. By the right-hand rule,this corresponds to a clockwise current.If the loop moves to the left,the area in the left region $(A_L)$ increases and the area in the right region $(A_R)$ decreases. Thus,the inward flux increases. To oppose this,the induced current will create an outward magnetic field,which corresponds to an anticlockwise current.

$A$ space consists of two uniform magnetic fields,as shown. $A$ conducting circular loop is placed symmetrically at the boundary.

Similar Questions

The north pole of a long horizontal bar magnet is being brought closer to a vertical conducting plane along the perpendicular direction. The direction of the induced current in the conducting plane will be

The magnitude of induced emf is directly proportional to the rate of change of magnetic flux linked with the coil. This statement is known as

Two conducting wire loops are concentric and lie in the same plane. The current in the outer loop is clockwise and increasing with time. The induced current in the inner loop is

There are two square loops $A$ and $B$. When $A$ moves towards $B$,a current starts flowing in $B$ as shown in the figure,and the current in $B$ stops when $A$ stops moving. From this,we can infer that (Assume loop $B$ is at rest):

Magnetic flux linked with the coil in weber is given by the equation $\phi = 5t^2 + 6t + 11$. The e.m.f. induced in the coil in the $5^{\text{th}}$ second will be (in $\text{ V}$)

Vedclass Test Series

Exam Paper Generator

Online Exam Module