The reason why there are two reversals of direction of current for one rotation.

Question

Want to see more full solutions like this?

Answer 1

Question

Chapter 20, Problem 1CQ

To determine

The reason why there are two reversals of direction of current for one rotation.

Expert Solution & Answer

Answer to Problem 1CQ

There are two reversals of direction of current for one rotation since the flux reaches the maximum positive value and maximum negative value during one rotation.

Explanation of Solution

With the rotation of the loop, the associated magnetic flux increases. The flux approaches its maximum positive value when the loop is perpendicular to the field and after that the flux starts to decrease as the loop becomes parallel to the magnetic field. The induced current reverses its direction as the loop turns through the maximum position and the flux changes from increasing to decreasing. This is because of the reversal in the sign of the change the induced current opposes.

Then the loop continues to rotate. When the loop becomes once again perpendicular to the field but facing the opposite way, the flux reaches its maximum negative value. At this position the flux changes from decreasing to increasing. Due to the reversal in the sign of the change the induced current opposes, the current again reverses its direction. Thus the induced current reverses its direction twice per rotation.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 2

Question

Chapter 20, Problem 1CQ

To determine

The reason why there are two reversals of direction of current for one rotation.

Expert Solution & Answer

Answer to Problem 1CQ

There are two reversals of direction of current for one rotation since the flux reaches the maximum positive value and maximum negative value during one rotation.

Explanation of Solution

With the rotation of the loop, the associated magnetic flux increases. The flux approaches its maximum positive value when the loop is perpendicular to the field and after that the flux starts to decrease as the loop becomes parallel to the magnetic field. The induced current reverses its direction as the loop turns through the maximum position and the flux changes from increasing to decreasing. This is because of the reversal in the sign of the change the induced current opposes.

Then the loop continues to rotate. When the loop becomes once again perpendicular to the field but facing the opposite way, the flux reaches its maximum negative value. At this position the flux changes from decreasing to increasing. Due to the reversal in the sign of the change the induced current opposes, the current again reverses its direction. Thus the induced current reverses its direction twice per rotation.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Question

Chapter 20, Problem 1CQ

To determine

The reason why there are two reversals of direction of current for one rotation.

Expert Solution & Answer

Answer to Problem 1CQ

There are two reversals of direction of current for one rotation since the flux reaches the maximum positive value and maximum negative value during one rotation.

Explanation of Solution

With the rotation of the loop, the associated magnetic flux increases. The flux approaches its maximum positive value when the loop is perpendicular to the field and after that the flux starts to decrease as the loop becomes parallel to the magnetic field. The induced current reverses its direction as the loop turns through the maximum position and the flux changes from increasing to decreasing. This is because of the reversal in the sign of the change the induced current opposes.

Then the loop continues to rotate. When the loop becomes once again perpendicular to the field but facing the opposite way, the flux reaches its maximum negative value. At this position the flux changes from decreasing to increasing. Due to the reversal in the sign of the change the induced current opposes, the current again reverses its direction. Thus the induced current reverses its direction twice per rotation.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 20, Problem 1CQ

To determine

The reason why there are two reversals of direction of current for one rotation.

Expert Solution & Answer

Answer to Problem 1CQ

There are two reversals of direction of current for one rotation since the flux reaches the maximum positive value and maximum negative value during one rotation.

Explanation of Solution

With the rotation of the loop, the associated magnetic flux increases. The flux approaches its maximum positive value when the loop is perpendicular to the field and after that the flux starts to decrease as the loop becomes parallel to the magnetic field. The induced current reverses its direction as the loop turns through the maximum position and the flux changes from increasing to decreasing. This is because of the reversal in the sign of the change the induced current opposes.

Then the loop continues to rotate. When the loop becomes once again perpendicular to the field but facing the opposite way, the flux reaches its maximum negative value. At this position the flux changes from decreasing to increasing. Due to the reversal in the sign of the change the induced current opposes, the current again reverses its direction. Thus the induced current reverses its direction twice per rotation.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 20, Problem 1CQ

To determine

The reason why there are two reversals of direction of current for one rotation.

Expert Solution & Answer

Answer to Problem 1CQ

There are two reversals of direction of current for one rotation since the flux reaches the maximum positive value and maximum negative value during one rotation.

Explanation of Solution

With the rotation of the loop, the associated magnetic flux increases. The flux approaches its maximum positive value when the loop is perpendicular to the field and after that the flux starts to decrease as the loop becomes parallel to the magnetic field. The induced current reverses its direction as the loop turns through the maximum position and the flux changes from increasing to decreasing. This is because of the reversal in the sign of the change the induced current opposes.

Then the loop continues to rotate. When the loop becomes once again perpendicular to the field but facing the opposite way, the flux reaches its maximum negative value. At this position the flux changes from decreasing to increasing. Due to the reversal in the sign of the change the induced current opposes, the current again reverses its direction. Thus the induced current reverses its direction twice per rotation.

Answer 6

Chapter 20, Problem 1CQ

To determine

The reason why there are two reversals of direction of current for one rotation.

Expert Solution & Answer

Answer to Problem 1CQ

There are two reversals of direction of current for one rotation since the flux reaches the maximum positive value and maximum negative value during one rotation.

Explanation of Solution

With the rotation of the loop, the associated magnetic flux increases. The flux approaches its maximum positive value when the loop is perpendicular to the field and after that the flux starts to decrease as the loop becomes parallel to the magnetic field. The induced current reverses its direction as the loop turns through the maximum position and the flux changes from increasing to decreasing. This is because of the reversal in the sign of the change the induced current opposes.

Then the loop continues to rotate. When the loop becomes once again perpendicular to the field but facing the opposite way, the flux reaches its maximum negative value. At this position the flux changes from decreasing to increasing. Due to the reversal in the sign of the change the induced current opposes, the current again reverses its direction. Thus the induced current reverses its direction twice per rotation.

Answer 7

Chapter 20, Problem 1CQ

To determine

The reason why there are two reversals of direction of current for one rotation.

Answer 8

Expert Solution & Answer

Answer to Problem 1CQ

There are two reversals of direction of current for one rotation since the flux reaches the maximum positive value and maximum negative value during one rotation.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

With the rotation of the loop, the associated magnetic flux increases. The flux approaches its maximum positive value when the loop is perpendicular to the field and after that the flux starts to decrease as the loop becomes parallel to the magnetic field. The induced current reverses its direction as the loop turns through the maximum position and the flux changes from increasing to decreasing. This is because of the reversal in the sign of the change the induced current opposes.

Then the loop continues to rotate. When the loop becomes once again perpendicular to the field but facing the opposite way, the flux reaches its maximum negative value. At this position the flux changes from decreasing to increasing. Due to the reversal in the sign of the change the induced current opposes, the current again reverses its direction. Thus the induced current reverses its direction twice per rotation.