The power factor of an AC circuit is defined as the ratio of:

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Question: The power factor of an AC circuit is defined as the ratio of:

Options:

Correct Answer: Real power to apparent power

Solution:

The power factor is defined as the ratio of real power to apparent power.

The power factor of an AC circuit is defined as the ratio of:

The power factor of an AC circuit is defined as the ratio of:

Step 1: Understand that in an AC circuit, power can be divided into two types: real power and apparent power.
Step 2: Real power is the actual power that does useful work in the circuit, measured in watts (W).
Step 3: Apparent power is the total power flowing in the circuit, measured in volt-amperes (VA).
Step 4: The power factor is a way to express how effectively the electrical power is being used.
Step 5: The power factor is calculated by taking the ratio of real power (W) to apparent power (VA).
Step 6: This ratio can be expressed as: Power Factor = Real Power / Apparent Power.

Power Factor – The power factor is a measure of how effectively electrical power is being converted into useful work output, defined as the ratio of real power (measured in watts) to apparent power (measured in volt-amperes).
Real Power – Real power is the actual power consumed by the circuit to perform work, measured in watts (W).
Apparent Power – Apparent power is the product of the current and voltage in an AC circuit, measured in volt-amperes (VA), and represents the total power flowing in the circuit.