MEDIUM
7th ICSE
IMPORTANT
Earn 100

Name two factors on which the strength of magnetic field of an electromagnet depends?

Important Questions on Electricity and Magnetism

MEDIUM
7th ICSE
IMPORTANT
Concise PHYSICS Middle School 7>Chapter 7 - Electricity and Magnetism>TEST YOURSELF>Q 15
State two ways by which the strength of magnetic field of an electromagnet can be increased?
EASY
7th ICSE
IMPORTANT
Concise PHYSICS Middle School 7>Chapter 7 - Electricity and Magnetism>TEST YOURSELF>Q 16
State two common uses of electromagnets?
MEDIUM
7th ICSE
IMPORTANT
Concise PHYSICS Middle School 7>Chapter 7 - Electricity and Magnetism>TEST YOURSELF>Q 17
Name a domestic device in which an electromagnet is used?
HARD
7th ICSE
IMPORTANT
Concise PHYSICS Middle School 7>Chapter 7 - Electricity and Magnetism>TEST YOURSELF>Q 18
Draw a neat and labelled diagram of an electric bell and describe its working?
MEDIUM
7th ICSE
IMPORTANT
Concise PHYSICS Middle School 7>Chapter 7 - Electricity and Magnetism>TEST YOURSELF>Q 19
The incomplete diagram of an electric bell is given in figure. Complete the diagram and label its different parts.
Question Image
MEDIUM
7th ICSE
IMPORTANT
Concise PHYSICS Middle School 7>Chapter 7 - Electricity and Magnetism>TEST YOURSELF>Q 20
What is declination? Draw a diagram to show the angle between the declination and true direction of geographic north.
EASY
7th ICSE
IMPORTANT
Concise PHYSICS Middle School 7>Chapter 7 - Electricity and Magnetism>TEST YOURSELF>Q 21
Define the term current.
EASY
7th ICSE
IMPORTANT
Concise PHYSICS Middle School 7>Chapter 7 - Electricity and Magnetism>TEST YOURSELF>Q 22
Name four appliances which work using electricity?