MEDIUM
10th CBSE
IMPORTANT
Earn 100

Draw the diagram to show the magnetic field lines around a bar magnet.

Important Questions on Magnetic Effects of Electric Current

MEDIUM
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 18
List any two properties of magnetic field lines.
MEDIUM
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 19

Two coils of insulated copper wire are wound over non-conducting cylinder. One coil has the large number of turns.

(a) Write your observation when (i) Key is closed. (ii) Key is open.

(b) Give reason for your observation.

(c) Mention the name of the phenomenon involved and define it.

EASY
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 20
Describe the function of the earth wire in electrical instruments.
EASY
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 20
Why is it necessary to earth the metallic electric appliances?
EASY
10th CBSE
IMPORTANT
Concise Physics A Textbook of Science for Class X>Chapter 4 - Part -1>Magnetic Effects of Electric Current>Q 20
Explain the term short-circuiting?