An AC power supply that produces a maximum voltage of Vmax = 120 V is connected

Question

An AC power supply that produces a maximum voltage of Vmax = 120 V is connected to an R = 22 resistor. The current and the resistor voltage are respectively measured with an ideal AC ammeter and an ideal AC voltmeter, as shown in Figure P21.3. What does each meter read? Note that an ideal ammeter has zero resistance and an ideal voltmeter has infinite resistance.

An AC power supply that produces a maximum voltage of delta Vmax = 120 V is connected to an R = 22 resistor. The current and the resistor voltage are respectively measured with an ideal AC ammeter and an ideal AC voltmeter, as shown in Figure P21.3. What does each meter read? Note that an ideal ammeter has zero resistance and an ideal voltmeter has infinite resistance.

Explanation / Answer

Voltmeter = 120 V

Ammeter = I = V/R = (If the resistor has a value of 22 ohms) equals approximately 5.45 amps.

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