MEDIUM
9th ICSE
IMPORTANT
Earn 100

How will you determine the polarity of the faces of the coil on the basis of the direction of flow of current?

Important Questions on Electricity and Magnetism

MEDIUM
9th ICSE
IMPORTANT
Together With Physics Class 9>Chapter 8 - Electricity and Magnetism>PRACTICE QUESTIONS>Q 17
Why is soft iron used as a core of the electromagnet in the electric bell? 
MEDIUM
9th ICSE
IMPORTANT
Together With Physics Class 9>Chapter 8 - Electricity and Magnetism>PRACTICE QUESTIONS>Q 18
What will be the effect on the working of an electric bell if instead of direct current, alternating current is supplied?
MEDIUM
9th ICSE
IMPORTANT
Together With Physics Class 9>Chapter 8 - Electricity and Magnetism>PRACTICE QUESTIONS>Q 19

The figure given below shows an electromagnet.

Question Image

What will be the polarity at the end  X?

(Choose from: North/ South)

MEDIUM
9th ICSE
IMPORTANT
Together With Physics Class 9>Chapter 8 - Electricity and Magnetism>PRACTICE QUESTIONS>Q 19

The figure given below shows an electromagnet.

Question Image

Suggest a way by which the strength of the electromagnet referred to in the question may be increased.

EASY
9th ICSE
IMPORTANT
Together With Physics Class 9>Chapter 8 - Electricity and Magnetism>PRACTICE QUESTIONS>Q 20

Define the term geographical axis.

EASY
9th ICSE
IMPORTANT
Together With Physics Class 9>Chapter 8 - Electricity and Magnetism>PRACTICE QUESTIONS>Q 20

Define the term magnetic axis.

EASY
9th ICSE
IMPORTANT
Together With Physics Class 9>Chapter 8 - Electricity and Magnetism>PRACTICE QUESTIONS>Q 20
Define the term magnetic meridian.
EASY
9th ICSE
IMPORTANT
Together With Physics Class 9>Chapter 8 - Electricity and Magnetism>PRACTICE QUESTIONS>Q 20

Define the term geographical meridian.