Question

A circular loop of wire with area 0.020 m2m2 lies in the x-y plane. Initially there's...

A circular loop of wire with area 0.020 m2m2 lies in the x-y plane. Initially there's a magnetic field of 3.6 TT in the -z-direction. The field remains constant for 11 ss , then decreases gradually to zero in 11 ss , and then remains zero for 11 ss .

Part A: Find the magnitude of the induced emf in the loop for the first 11 ss interval.

Express your answer to two significant figures and include the appropriate units.

Part B:

Find the direction of the induced emf in the loop for the first 11 ss interval.

Find the direction of the induced emf in the loop for the first 11  interval.

clockwise around the z-axis in the xy-plane
counterclockwise around the z-axis in the xy-plane
no direction

Part C: Find the magnitude of the induced emf in the loop for the second 11 ss interval.

Express your answer to two significant figures and include the appropriate units.

Part D:

Find the direction of the induced emf in the loop for the second 11 ss interval.

Find the direction of the induced emf in the loop for the second 11  interval.

clockwise around the z-axis in the xy-plane
counterclockwise around the z-axis in the xy-plane
no direction

Part E: Find the magnitude of the induced emf in the loop for the third 11 ss interval.

Express your answer to two significant figures and include the appropriate units.

Part F:

Find the direction of the induced emf in the loop for the third 11 ss interval.

Find the direction of the induced emf in the loop for the third 11  interval.

clockwise around the z-axis in the xy-plane
counterclockwise around the z-axis in the xy-plane
no direction
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Homework Answers

Answer #1

induces emf is given as

and the flux is,

Part A

For the first 11 s B is constant so,

Part B

No direction

Part C

So for the second 11 s interval

Part D the direction is

counterclockwise around the z-axis in the xy-plane

Part E

For the third 11s interval

Part F

No direction

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