How can you induce Vemf in a loop with a constant cross-sectional area A placed

ID: 1476093 • Letter: H

Question

How can you induce Vemf in a loop with a constant cross-sectional area A placed in a uniform magnetic field B?

a)Move the loop in the opposite direction of the magnetic field vector.

b)Rotate the loop around its axis perpendicular to the direction of the magnetic field vector.

c)Move the loop in the direction of the magnetic field vector.

d)Rotate the loop around its axis parallel to the direction of the magnetic field vector.

e)Move the loop in a direction perpendicular to the magnetic field vector.

here,

to induce Emf in a loop with a constant cross sectional area A placed in a uniform magnetic feild B

b)Rotate the loop around its axis perpendicular to the direction of the magnetic field vector.

as emf is induced when the magnetic flux will change with time

for moving the loop in the constant magnetic field ,

magnetic flux in the loop will be constant

and there will be no induced magnetic flux

so the loop is rotated around its axis perpendicular to the direction of feild vector so that the angle theta changes

theta is the angle between the magnetic feild and the area vector

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