A circular loop of wire is in a spatially uniform magnetic field, as shown in th

Question

A circular loop of wire is in a spatially uniform magnetic field, as shown in the figure  (Figure 1) . The magnetic field is directed into the plane of the figure.

Part A

Determine the direction (clockwise or counterclockwise) of the induced current in the loop when  B is increasing.

Determine the direction (clockwise or counterclockwise) of the induced current in the loop when   is increasing.

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Part B

Explain your reasoning for the result you have found in parts (A).

Essay answers are limited to about 500 words (3800 characters maximum, including spaces).

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Part C

Determine the direction (clockwise or counterclockwise) of the induced current in the loop when B is decreasing.

Determine the direction (clockwise or counterclockwise) of the induced current in the loop when  is decreasing.

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Part D

Explain your reasoning for the result you have found in parts (C).

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Part E

Determine the direction (clockwise or counterclockwise) of the induced current in the loop when B is constant with a value of  B0 .

Determine the direction (clockwise or counterclockwise) of the induced current in the loop when  is constant with a value of   .

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Part F

Explain your reasoning for the result you have found in parts (E).

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The induced current in the loop is counterclockwise. The induced current in the loop is clockwise. The induced current in the loop is zero.

Explanation / Answer

A)

The induced current in the loop is counterclockwise

B)
when B is increasing as the flux of the magnetic field is increasing ,

according to lenz's law , the induced current in the loop will oppose the applied magnetic field

hence ,the induced field is out of the plane , hence , the current in the loop is counterclockwise

C)

when B is decreasing.

The induced current in the loop is clockwise.

D)

according to lenz's law , the induced current in the loop will be same as the applied magnetic field

hence ,the induced field is out of the plane , hence , the current in the loop is clockwise

E)

as the magnetic field is constant

   The induced current in the loop is zero.

F)

as the magnetic field is constant

the rate of change of magnetic flux will be zero in the loop

hence , the induced current in the loop is zero

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