Concept explainers
(a)
The time constant of the
(a)
Answer to Problem 97P
The time constant of the
Explanation of Solution
Write the expression for the charge in the capacitor during charging.
Here,
Use equation (I) to solve for
Conclusion:
Substitute
Therefore, the time constant of the
(b)
The resistance of the flashbulb in the circuit.
(b)
Answer to Problem 97P
The resistance of the flashbulb in the circuit is
Explanation of Solution
Write the expression for the time constant.
Here,
Use equation (III) to solve for
Write the expression for the energy stored in the capacitor.
Here,
Use equation (V) to solve for
Use equation (VI) and (II) in (IV) to solve for
Conclusion:
Substitute
Therefore, the resistance of the flashbulb in the circuit is
(c)
The maximum power dissipated in the flashbulb.
(c)
Answer to Problem 97P
The maximum power dissipated in the flashbulb is
Explanation of Solution
Write the expression for the maximum power dissipated.
Here,
Conclusion:
Substitute
Therefore, the maximum power dissipated in the flashbulb is
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Chapter 18 Solutions
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