Differentiate between bar magnet and electromagnet.

Important Questions on Magnetic Effects of Electric Current

EASY

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 1

Name the device which is used to reverse the direction of current in the coil of a motor.

MEDIUM

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 2

Explain an activity to study the relation between the direction of the current, the magnetic field and the motion of the conductor.

MEDIUM

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 3

State Fleming’s left-hand rule.

MEDIUM

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 4

What is the role of the carbon brushes in an electric motor?

EASY

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 5

Define an electric motor.

EASY

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 6

What are the two types of electric motors?

EASY

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 7

Explain the principle of DC motor.

MEDIUM

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 8

What do you understand by the term commutator?