The __ is the basis of relays and motors and generators.
- Heating effect
- Cooling effect
- Resistive effect
- Magnetic effect
The __ is used to indicate the amount of current flowing to and from the battery.
- UPS
- Ammeter
- Pre-heater
- Auxiliary meter
The SI unit of electric power is?
- Watt
- Joules
- Volts
- Ampere
Which one of the following is not a factor affecting the resistance of a material?
- Type of material
- Pressure exerted by material on smooth surface
- Temperature
- Cross sectional area
What should be the effect on load, if the frequency of electricity is doubled?
- Humming introduced in load
- Decreases the efficiency
- More power transferred in load
- No change
A quantity known as the ___ indicates the total resistance of the circuit.
- End to end resistance
- Equivalent resistance
- Final resistance
- Ideal resistance
In the electrical companies there must be fire safety to avoid danger, commonly used equipment is:
- Mud/ soil
- Air blower
- Fire extinguisher
- Water tank
The storage battery provides electrical energy through:
- Electrical reactions
- Chemical reactions
- Electromechanical reactions
- Mechanical reactions
What is the unit of measurement of Inductance?
- Henry
- Watt
- Light
- Tesla
The "opposing" Electromotive Force is often described as a/an _____?
- Limited Electromotive Force
- Back Electromotive Force
- Ready Electromotive Force
- Induced Electromotive Force
