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What is the power factor in a pure inductive or capacitive circuit?
- a)-1
- b)0
- c)1
- d)Infinity
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
What is the power factor in a pure inductive or capacitive circuit?a)-...
Power Factor in Pure Inductive or Capacitive Circuit
In a pure inductive or capacitive circuit, the power factor is 0.
Explanation:
Inductive Circuit:
- In an inductive circuit, the current lags behind the voltage due to the inductive reactance.
- The power factor in an inductive circuit is leading to 0, which means that the circuit is purely reactive.
Capacitive Circuit:
- In a capacitive circuit, the current leads the voltage due to the capacitive reactance.
- The power factor in a capacitive circuit is lagging to 0, which also indicates a purely reactive circuit.
Conclusion:
- In both pure inductive and capacitive circuits, the power factor is 0 because the reactive power is out of phase with the real power.
- This leads to a power factor of 0, which means that there is no real power being consumed or dissipated in the circuit, only reactive power.
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Community Answer
What is the power factor in a pure inductive or capacitive circuit?a)-...
A circuit which contains only inductance is called a pure inductive circuit and a circuit containing only a pure capacitor is known as a pure capacitive circuit. In a pure inductive circuit or a pure capacitive circuit, the current is lagging or ahead by 90 degrees from the voltage. The power factor is the cosine of the angle between the voltage and the current. Therefore:
Φ = (π/2) → Power factor (cos(π/2)) = 0
Φ = (π/2) → Power factor (cos(π/2)) = 0
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