DC Generator & Motors

What is the main function of a DC generator?

• To convert electrical energy into mechanical energy

• To convert mechanical energy into electrical energy

• To store electrical energy

• To convert electrical energy into heat energy

Which of the following is a characteristic of a DC generator?

• It produces alternating current

• It produces direct current

• It does not produce any current

• It stores current

What is electromagnetic induction?

• The process of generating heat using electricity

• The process of generating electricity using a magnetic field

• The process of generating light using electricity

• The process of generating sound using electricity

In a DC generator, what component is responsible for converting mechanical energy into electrical energy?

• The battery

• The commutator

• The armature

• The brushes

What is the unit of electrical current?

• Metre

• Kilogram

• Ampere

• Celsius

Which law explains the principle of electromagnetic induction?

• Newton's First Law

• Ohm's Law

• Faraday's Law

• Boyle's Law

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

• To store electrical energy

• To convert AC to DC

• To convert DC to AC

• To maintain the direction of current

Which of the following is NOT a part of a DC generator?

• Armature

• Commutator

• Brushes

• Transformer

What happens when a conductor moves through a magnetic field?

• It generates heat

• It generates light

• It generates an electric current

• It generates sound

What is the unit of magnetic field strength?

• Tesla

• Newton

• Joule

• Watt