(a)
Whether the emf of the battery affect the time needed for the LR circuit to reach a given fraction of its maximum possible current.
(a)
Answer to Problem 21Q
No
Explanation of Solution
Introduction:
The current in the LR circuit:
As
Conclusion:
No, the emf of the battery does not affect the time needed for the LR circuit to reach a given fraction of its maximum possible current.
(b)
Whether the emf of the battery affect the time needed for the LR circuit to reach a given value of current.
(b)
Answer to Problem 21Q
Yes
Explanation of Solution
Introduction:
The current in the LR circuit:
When the switch is suddenly closed or opened, the current in the circuit changes exponentially. The value of current depends on the emf of the battery.
Conclusion:
Yes, the emf of the battery affects the time needed for the LR circuit to reach a given value of current.
Chapter 21 Solutions
Physics: Principles with Applications
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