In an AC circuit, if the voltage is 120V and the current is 10A, what is the pow

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Question: In an AC circuit, if the voltage is 120V and the current is 10A, what is the power factor if the real power is 600W? (2022)

Options:

Correct Answer: 0.6

Solution:

Power factor = Real Power / (Voltage x Current) = 600 / (120 x 10) = 600 / 1200 = 0.5.

In an AC circuit, if the voltage is 120V and the current is 10A, what is the power factor if the real power is 600W? (2022)

In an AC circuit, if the voltage is 120V and the current is 10A, what is the power factor if the real power is 600W? (2022)

Step 1: Identify the given values. We have a real power of 600W, voltage of 120V, and current of 10A.
Step 2: Calculate the apparent power using the formula: Apparent Power = Voltage x Current.
Step 3: Substitute the values: Apparent Power = 120V x 10A = 1200VA.
Step 4: Use the power factor formula: Power Factor = Real Power / Apparent Power.
Step 5: Substitute the values: Power Factor = 600W / 1200VA.
Step 6: Calculate the power factor: Power Factor = 0.5.

Power Factor – The ratio of real power (in watts) to apparent power (in volt-amperes) in an AC circuit, indicating the efficiency of power usage.
Real Power – The actual power consumed by the circuit, measured in watts.
Apparent Power – The product of the voltage and current in an AC circuit, measured in volt-amperes (VA).