(a)
The peak current in the circuit.
(a)
Answer to Problem 38P
The required peak current is 7.94 A.
Explanation of Solution
`Given:
Inductance of inductor is
Resistance of resistor is
Ideal voltage output is
Formula used:
Expression for peak current is
Here,
Calculation:
Substitute
Conclusion:
Hence, the requiredpeak current is 7.94 A.
(b)
The peak and RMS voltage across the inductor.
(b)
Answer to Problem 38P
The required peak voltage and RMS voltage are
Explanation of Solution
Given:
Inductance of inductor is
Resistance of resistor is
Ideal voltage output is
Formula used:
RMS current can be obtained as
Here,
Calculation:
Expression for output voltage is
From above expression, peak voltage is found to be
Substitute
Conclusion:
Hence, the required peak voltage and RMS voltage are
(c)
The average power dissipated.
(c)
Answer to Problem 38P
Explanation of Solution
Given:
Inductance of inductor is
Resistance of resistor is
Ideal voltage output is
Peak current is
Formula used:
Average power can be obtained as
Here,
Calculation:
Substitute
Conclusion:
Hence, the required average power is
(d)
The peak and average magnetic energy stored in inductor.
(d)
Answer to Problem 38P
Explanation of Solution
Given:
Inductance of inductor is
Resistance of resistor is
Ideal voltage output is
Formula used:
Expression for peak magnetic energy stored in inductor is
Expression for average magnetic energy stored in inductor is
Here,
Calculation:
Substitute
Average energy is calculated as
Conclusion:
Hence, the required peak and average magnetic energy is
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Chapter 29 Solutions
Physics for Scientists and Engineers, Vol. 3
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