EASY
10th CBSE
IMPORTANT
Earn 100

What is the function of a commutator in an electric motor?

Important Questions on Magnetic Effect of Electric Current

EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Very Short Answer Type Questions>Q 12
Of what substance are the brushes of an electric motor made?
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Very Short Answer Type Questions>Q 13
Of what substance is the core of the coil of an electric motor made?
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Very Short Answer Type Questions>Q 14

In an electric motor, which of the following remains fixed, and which rotates with the coil?

Commutator; Brush

EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Very Short Answer Type Questions>Q 15
What is the role of the split ring in an electric motor?
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Very Short Answer Type Questions>Q 16
Fleming's Rule for the motor effect uses the _____ hand.
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Short Answer Type Questions>Q 17
A current-carrying conductor is placed perpendicularly in a magnetic field. Name the rule which can be used to find the direction of force acting on the conductor.
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Short Answer Type Questions>Q 17
State two ways to increase the force on a current-carrying conductor in a magnetic field.
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 2 - Magnetic Effect of Electric Current>Short Answer Type Questions>Q 17
Name one device whose working depends on the force exerted on a current-carrying coil placed in a magnetic field.