MODULE 4.4

Power factor is defined as_____________________

• The property of a device or component to store an electrostatic charge

• The ratio of true power to apparent power

• The force that moves free electrons along the conductor

• The electrical property of a circuit that oppose any change in the current flowing in it

What is called the states how much reactive load the circuit contains?

• True power

• Power factor

• Apparent power

• Reactive power

When there is an inductive load, some of the power supplied is not used to do work. This wasted power is called?

• Apparent power

• Power factor

• True power

• Reactive power

When there is a resistive load, the power supplied is used to do work. This type of power is called?

• True power

• Reactive power

• Apparent power

• Power factor

The power factor of the Capacitive load is__________________

• 11

• 0.0

• 0.1

• 1.0

1) The power factor is Large when reactive power is_________________

• Zero

• Low

• High

• 1.0

The power factor is Small when reactive power is_________________

• Zero

• Low

• High

• 1.0

The power factor of the resistive load is__________________

• 11

• 0.0

• 0.1

• 1.0(100%)

The power factor is calculated by the following formula

• PF = True Power / Reactive Power

• PF = True Power x Reactive Power

• PF = True Power / Apparent Power

• PF = True Power x Apparent Power

The apparent power measured in

• Watt

• VAR

• Volt ampere (VA)

• Watt hour