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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:
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Practice Questions
1 question
Q1
The power factor of an AC circuit is defined as the ratio of:
Real power to apparent power
Apparent power to real power
Voltage to current
Current to voltage
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The power factor is defined as the ratio of real power to apparent power.
Questions & Step-by-step Solutions
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Q
Q: The power factor of an AC circuit is defined as the ratio of:
Solution:
The power factor is defined as the ratio of real power to apparent power.
Steps: 6
Show Steps
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.
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