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Chapter-23. Alternating Current Circuits. AC Circuits. All the equipment in this operating room use alternating current circuits. . Resistance. Capacitance. Capacitive Reactance, X C. Example 1 A Capacitor in an AC Circuit.

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chapter 23
Chapter-23

Alternating Current Circuits

ac circuits
AC Circuits

All the equipment in this operating room use alternating current circuits.

example 1 a capacitor in an ac circuit
Example 1A Capacitor in an AC Circuit

For the circuit above, the capacitance of the capacitor is 1.50 mF, and the rms voltage of the generator is 25.0 V. What is the rms current in the circuit when the frequency of the generator is 5.00 × 103 Hz?

current and voltage in a capacitive circuit
Current and Voltage in a Capacitive Circuit

In a circuit containing only a capacitor, the instantaneous voltage and current are not in phase. Instead, the current leads the voltage by one-quarter of a cycle or by a phase angle of 90°.

example 2 an inductor in an ac circuit
Example 2An Inductor in an AC Circuit

The circuit in Figure 23.6 contains a 3.60-mH inductor. The rms voltage of the generator is 25.0 V. Find the rms current in the circuit when the generator frequency is 5.00 × 103 Hz.

current and voltage in an inductive circuit
Current and Voltage in an Inductive Circuit

The instantaneous voltage and current in a circuit containing only an inductor are not in phase. The current lags behind the voltage by one-quarter of a cycle or by a phase angle of 90°.

a comparison capacitive versus inductive
A Comparison:Capacitive versus Inductive

The current leads the voltage by one-quarter of a cycle or by a phase angle of 90°.

The current lags behind the voltage by one-quarter of a cycle or by a phase angle of 90°.