An electric generator actually act as a
Source of electric charge
Source of heat energy
Electromagnet
Converter of energy
The system where due to action of an electromagnet, a circuit is activated to control a second circuit is
Electromagnetic relay
Remote control
Radar
Electric bell
The maximum safe current allowed to flow through a fuse before it melts is
Fuse rating
Power rating
Electrostatic
None of these
Carbon brushes are used in
Electric motor
Bar magnet
None
Electromagnets are used in
Electric bells
Telephone
Dynamo
All of these
The wire having red plastic covering is
Live wire
neutral wire
Earth wire
SI unit of magnetic field is
Tesla
Volt
Joule
Ampere
An insulated wire wound in the form of a helix with a large no of turns in
A solenoid
A toroid
A galvenoscope
Emulators
Commonly used safety fuse wire in made of
Copper
Pb
Ni
An alloy of tin & lead
The charged body at rest produces
Electric field
Magnetic field
Neither A or B
Both A & B
