Concept explainers
For
Determine the
a. Current
b. Voltage
c. lime required for
(a)
The value of the current
Answer to Problem 5.34HP
The value of the current
Explanation of Solution
Calculation:
The conversion from
The conversion from
The conversion from
The conversion from
The conversion from
The given diagram is shown in Figure 1
For time
The required diagram is shown in Figure 2
From above circuit, the value of the voltage across the capacitor terminals for time
Substitute
From the above circuit,the expression for the value of the current through the capacitor for time
For time
Mark the values and redraw the circuit for the time
The required diagram is shown in Figure 3
Apply KVL at the node
The expression for the current through the capacitor for time
Substitute
For time
The required diagram is shown in Figure 4
From the above circuit, the expression for the value of the current through the for the time
The expression for the voltage across the capacitor for the time
Substitute
To calculate the Thevenin equivalent resistance for the circuit open circuit the capacitor terminals, short circuit the voltage source and redraw the circuit.
The required diagram is shown in Figure 5
From above figure the expression to calculate the time constant of the circuit is given by,
Substitute
The expression for the complete solution for the current
Substitute
Conclusion:
Therefore, thevalue of the current
(b)
The value of voltage
Answer to Problem 5.34HP
Thevalue of the voltage
Explanation of Solution
Calculation:
The expression for the value of the voltage
Conclusion:
Therefore, the value of the voltage
(c)
The time required for
Answer to Problem 5.34HP
Thetime required for
Explanation of Solution
Calculation:
The expression for the current through the capacitor for time
Substitute
Substitute
The expression for the current
Substitute
Substitute
Substitute
Conclusion:
Therefore, the time required for
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Chapter 5 Solutions
Principles and Applications of Electrical Engineering
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- a. Find the Thévenin and Norton equivalent circuits for the circuit shown in Figure P5.89.b. Find the maximum power that this circuit can deliver to a load if the load can have any complex impedance. c. Repeat if the load is purely resistive.arrow_forwardFor the circuit of Figure P5.52, assume that thecircuit is at steady state for t < 0. Find the voltage across the 10-kΩ resistor in parallel with the switch for t ≥ 0.arrow_forwardThe equation of the charge on the capacitor at any time t for an LRC series circuits is givenas a) Assume there is no initial charge and current, sketch the graph of the charge. b) What happen to the charge after a long time? c) State the transient and the steady state terms.arrow_forward
- Consider the phasors shown in Figure P5.22. The frequency of each signal is f=200 Hz. Write a time-domain expression for each voltage in the form Vm cos(ωt+θ). State the phase relationships between pairs of these phasors.arrow_forwardDetermine the power for each source shown in Figure P5.76. Also, state whether each source is delivering or absorbing energy.arrow_forwardExplain why we replace capacitances with open circuits and inductances with short circuits in dc steady-state analysis.arrow_forward
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