A single-turn rectangular loop of width W and length L moves parallel to its len

Question

A single-turn rectangular loop of width W and length L moves parallel to its length with a constant speed v. The loop moves from a region with a magnetic field B perpendicular to the plane of the loop to a region where the magnetic field is zero, as shown in the figure. Find the rate of change in the magnetic flux through the loop

(a) before it enters the region of zero field,

(b) just after it enters the region of zero field, and

(c) once it is fully within the region of zero field.

(d) For each of the cases consider in parts (a), (b), and (c), state whether the induced current in the loop is clockwise, counterclockwise, or zero.

Thanks

Explanation / Answer

a)

when the loop is in the magnetic field completely ,

as the flux of the magnetic field will remain constant.

the rate of change of magnetic field is Zero

b)

when the loop start entering the zero field ,

the magnetic flux in the loop will start decreasing,

the rate of change of magnetic flux is negative

c)

when the loop is out of the magnetic field completeley ,

as the flux of the magnetic field will remain constant equal to zero.

the rate of change of magnetic field is Zero

d)

as induced current = rate of magnetic flux/Resistance of loop

induced current in A is zero

induced current in B is counterclock wise.

induced current in C is zero

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.