a) Instantaneous value of emf b) If the magnitude of each emf increasing, decreasing or holding constant.

Question

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Answer 1

Question

Chapter 32, Problem 1CQ

To determine

a) Instantaneous value of emf

b) If the magnitude of each emf increasing, decreasing or holding constant.

Expert Solution & Answer

Answer to Problem 1CQ

Solution:

For phasor a.

a) Instantaneous emf = −100 V

b) emf is decreasing.

For phasor b.

a) Instantaneous emf = 60 V

b) emf is decreasing.

For phasor c.

a) Instantaneous emf = 80 V

b) emf is increasing.

Explanation of Solution

Given:

The following figure showing phasors are given.

Student Workbook for Physics for Scientists and Engineers: A Strategic Approach, Vol 1. (Chs 1-21), Chapter 32, Problem 1CQ

Explanation:

From the figure we can find the value of the emf of each of the phasors.

For phasor a

a) The instantaneous value of emf = −100 V

b) The phasor rotates counter clockwise, as phasor a rotates it comes near to the vertical axis and goes away from the horizontal axis, hence the magnitude of emf is decreasing.

For phasor b

a) The instantaneous value of emf = 60 V

b) The phasor rotates counter clockwise, as phasor b rotates it comes near to the vertical axis and goes away from the horizontal axis, hence the magnitude of emf is decreasing.

For phasor c

a) The instantaneous value of emf = 80 V

b) The phasor rotates counter clockwise, as phasor c rotates it comes near to the horizontal axis and goes away from the vertical axis, hence the magnitude of emf is increasing.

Conclusion:

For phasor a: The instantaneous emf is −100 V, and the magnitude is decreasing.

For phasor b: The instantaneous emf is 60 V, and the magnitude is decreasing.

For phasor c: The instantaneous emf is 80 V, and the magnitude is increasing.

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Answer 2

Question

Chapter 32, Problem 1CQ

To determine

a) Instantaneous value of emf

b) If the magnitude of each emf increasing, decreasing or holding constant.

Expert Solution & Answer

Answer to Problem 1CQ

Solution:

For phasor a.

a) Instantaneous emf = −100 V

b) emf is decreasing.

For phasor b.

a) Instantaneous emf = 60 V

b) emf is decreasing.

For phasor c.

a) Instantaneous emf = 80 V

b) emf is increasing.

Explanation of Solution

Given:

The following figure showing phasors are given.

Student Workbook for Physics for Scientists and Engineers: A Strategic Approach, Vol 1. (Chs 1-21), Chapter 32, Problem 1CQ

Explanation:

From the figure we can find the value of the emf of each of the phasors.

For phasor a

a) The instantaneous value of emf = −100 V

b) The phasor rotates counter clockwise, as phasor a rotates it comes near to the vertical axis and goes away from the horizontal axis, hence the magnitude of emf is decreasing.

For phasor b

a) The instantaneous value of emf = 60 V

b) The phasor rotates counter clockwise, as phasor b rotates it comes near to the vertical axis and goes away from the horizontal axis, hence the magnitude of emf is decreasing.

For phasor c

a) The instantaneous value of emf = 80 V

b) The phasor rotates counter clockwise, as phasor c rotates it comes near to the horizontal axis and goes away from the vertical axis, hence the magnitude of emf is increasing.

Conclusion:

For phasor a: The instantaneous emf is −100 V, and the magnitude is decreasing.

For phasor b: The instantaneous emf is 60 V, and the magnitude is decreasing.

For phasor c: The instantaneous emf is 80 V, and the magnitude is increasing.

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Answer 3

Question

Chapter 32, Problem 1CQ

To determine

a) Instantaneous value of emf

b) If the magnitude of each emf increasing, decreasing or holding constant.

Expert Solution & Answer

Answer to Problem 1CQ

Solution:

For phasor a.

a) Instantaneous emf = −100 V

b) emf is decreasing.

For phasor b.

a) Instantaneous emf = 60 V

b) emf is decreasing.

For phasor c.

a) Instantaneous emf = 80 V

b) emf is increasing.

Explanation of Solution

Given:

The following figure showing phasors are given.

Student Workbook for Physics for Scientists and Engineers: A Strategic Approach, Vol 1. (Chs 1-21), Chapter 32, Problem 1CQ

Explanation:

From the figure we can find the value of the emf of each of the phasors.

For phasor a

a) The instantaneous value of emf = −100 V

b) The phasor rotates counter clockwise, as phasor a rotates it comes near to the vertical axis and goes away from the horizontal axis, hence the magnitude of emf is decreasing.

For phasor b

a) The instantaneous value of emf = 60 V

b) The phasor rotates counter clockwise, as phasor b rotates it comes near to the vertical axis and goes away from the horizontal axis, hence the magnitude of emf is decreasing.

For phasor c

a) The instantaneous value of emf = 80 V

b) The phasor rotates counter clockwise, as phasor c rotates it comes near to the horizontal axis and goes away from the vertical axis, hence the magnitude of emf is increasing.

Conclusion:

For phasor a: The instantaneous emf is −100 V, and the magnitude is decreasing.

For phasor b: The instantaneous emf is 60 V, and the magnitude is decreasing.

For phasor c: The instantaneous emf is 80 V, and the magnitude is increasing.

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Answer 4

Question

Chapter 32, Problem 1CQ

To determine

a) Instantaneous value of emf

b) If the magnitude of each emf increasing, decreasing or holding constant.

Expert Solution & Answer

Answer to Problem 1CQ

Solution:

For phasor a.

a) Instantaneous emf = −100 V

b) emf is decreasing.

For phasor b.

a) Instantaneous emf = 60 V

b) emf is decreasing.

For phasor c.

a) Instantaneous emf = 80 V

b) emf is increasing.

Explanation of Solution

Given:

The following figure showing phasors are given.

Student Workbook for Physics for Scientists and Engineers: A Strategic Approach, Vol 1. (Chs 1-21), Chapter 32, Problem 1CQ

Explanation:

From the figure we can find the value of the emf of each of the phasors.

For phasor a

a) The instantaneous value of emf = −100 V

b) The phasor rotates counter clockwise, as phasor a rotates it comes near to the vertical axis and goes away from the horizontal axis, hence the magnitude of emf is decreasing.

For phasor b

a) The instantaneous value of emf = 60 V

b) The phasor rotates counter clockwise, as phasor b rotates it comes near to the vertical axis and goes away from the horizontal axis, hence the magnitude of emf is decreasing.

For phasor c

a) The instantaneous value of emf = 80 V

b) The phasor rotates counter clockwise, as phasor c rotates it comes near to the horizontal axis and goes away from the vertical axis, hence the magnitude of emf is increasing.

Conclusion:

For phasor a: The instantaneous emf is −100 V, and the magnitude is decreasing.

For phasor b: The instantaneous emf is 60 V, and the magnitude is decreasing.

For phasor c: The instantaneous emf is 80 V, and the magnitude is increasing.

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Answer 5

Chapter 32, Problem 1CQ

To determine

a) Instantaneous value of emf

b) If the magnitude of each emf increasing, decreasing or holding constant.

Expert Solution & Answer

Answer to Problem 1CQ

Solution:

For phasor a.

a) Instantaneous emf = −100 V

b) emf is decreasing.

For phasor b.

a) Instantaneous emf = 60 V

b) emf is decreasing.

For phasor c.

a) Instantaneous emf = 80 V

b) emf is increasing.

Explanation of Solution

Given:

The following figure showing phasors are given.

Student Workbook for Physics for Scientists and Engineers: A Strategic Approach, Vol 1. (Chs 1-21), Chapter 32, Problem 1CQ

Explanation:

From the figure we can find the value of the emf of each of the phasors.

For phasor a

a) The instantaneous value of emf = −100 V

b) The phasor rotates counter clockwise, as phasor a rotates it comes near to the vertical axis and goes away from the horizontal axis, hence the magnitude of emf is decreasing.

For phasor b

a) The instantaneous value of emf = 60 V

b) The phasor rotates counter clockwise, as phasor b rotates it comes near to the vertical axis and goes away from the horizontal axis, hence the magnitude of emf is decreasing.

For phasor c

a) The instantaneous value of emf = 80 V

b) The phasor rotates counter clockwise, as phasor c rotates it comes near to the horizontal axis and goes away from the vertical axis, hence the magnitude of emf is increasing.

Conclusion:

For phasor a: The instantaneous emf is −100 V, and the magnitude is decreasing.

For phasor b: The instantaneous emf is 60 V, and the magnitude is decreasing.

For phasor c: The instantaneous emf is 80 V, and the magnitude is increasing.

Answer 6

Chapter 32, Problem 1CQ

To determine

a) Instantaneous value of emf

b) If the magnitude of each emf increasing, decreasing or holding constant.

Expert Solution & Answer

Answer to Problem 1CQ

Solution:

For phasor a.

a) Instantaneous emf = −100 V

b) emf is decreasing.

For phasor b.

a) Instantaneous emf = 60 V

b) emf is decreasing.

For phasor c.

a) Instantaneous emf = 80 V

b) emf is increasing.

Explanation of Solution

Given:

The following figure showing phasors are given.

Student Workbook for Physics for Scientists and Engineers: A Strategic Approach, Vol 1. (Chs 1-21), Chapter 32, Problem 1CQ

Explanation:

From the figure we can find the value of the emf of each of the phasors.

For phasor a

a) The instantaneous value of emf = −100 V

b) The phasor rotates counter clockwise, as phasor a rotates it comes near to the vertical axis and goes away from the horizontal axis, hence the magnitude of emf is decreasing.

For phasor b

a) The instantaneous value of emf = 60 V

b) The phasor rotates counter clockwise, as phasor b rotates it comes near to the vertical axis and goes away from the horizontal axis, hence the magnitude of emf is decreasing.

For phasor c

a) The instantaneous value of emf = 80 V

b) The phasor rotates counter clockwise, as phasor c rotates it comes near to the horizontal axis and goes away from the vertical axis, hence the magnitude of emf is increasing.

Conclusion:

For phasor a: The instantaneous emf is −100 V, and the magnitude is decreasing.

For phasor b: The instantaneous emf is 60 V, and the magnitude is decreasing.

For phasor c: The instantaneous emf is 80 V, and the magnitude is increasing.

Answer 7

Chapter 32, Problem 1CQ

To determine

a) Instantaneous value of emf

b) If the magnitude of each emf increasing, decreasing or holding constant.

Answer 8

Expert Solution & Answer

Answer to Problem 1CQ

Solution:

For phasor a.

a) Instantaneous emf = −100 V

b) emf is decreasing.

For phasor b.

a) Instantaneous emf = 60 V

b) emf is decreasing.

For phasor c.

a) Instantaneous emf = 80 V

b) emf is increasing.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Given:

The following figure showing phasors are given.

Student Workbook for Physics for Scientists and Engineers: A Strategic Approach, Vol 1. (Chs 1-21), Chapter 32, Problem 1CQ

Explanation:

From the figure we can find the value of the emf of each of the phasors.

For phasor a

a) The instantaneous value of emf = −100 V

b) The phasor rotates counter clockwise, as phasor a rotates it comes near to the vertical axis and goes away from the horizontal axis, hence the magnitude of emf is decreasing.

For phasor b

a) The instantaneous value of emf = 60 V

b) The phasor rotates counter clockwise, as phasor b rotates it comes near to the vertical axis and goes away from the horizontal axis, hence the magnitude of emf is decreasing.

For phasor c

a) The instantaneous value of emf = 80 V

b) The phasor rotates counter clockwise, as phasor c rotates it comes near to the horizontal axis and goes away from the vertical axis, hence the magnitude of emf is increasing.

Conclusion:

For phasor a: The instantaneous emf is −100 V, and the magnitude is decreasing.

For phasor b: The instantaneous emf is 60 V, and the magnitude is decreasing.

For phasor c: The instantaneous emf is 80 V, and the magnitude is increasing.