Electric Generator

The video tutorial explains the function of electric generators, which convert mechanical energy into electrical energy. It describes the principle of inducing electric current by rotating a coil in a magnetic field and explains the flow of alternating current. The tutorial also covers Fleming's right hand rule for determining the direction of induced current and details the components of a generator, including the armature and commutator.

What is the primary function of an electric generator?

• Store mechanical energy

• Store electrical energy

• Convert mechanical energy into electrical energy

• Convert electrical energy into mechanical energy

Which component of the electric generator is responsible for inducing current?

• The rotating coil

• The galvanometer

• The permanent magnet

• The axle

According to Fleming's right-hand rule, what does the thumb represent?

• Direction of the electric field

• Direction of the induced current

• Motion of the conductor

• Direction of the magnetic field

What type of current is generated by an AC generator?

• Static current

• Pulsating current

• Alternating current

• Direct current

How does the direction of current change in an AC generator?

• It changes after every full rotation

• It changes randomly

• It changes after every half rotation

• It remains constant

What is the role of the commutator in a DC generator?

• To increase the voltage

• To convert AC to DC

• To convert DC to AC

• To maintain a constant direction of current

In Fleming's right-hand rule, which finger indicates the direction of the magnetic field?

• Little finger

• Middle finger

• Index finger

• Thumb