MEDIUM
10th CBSE
IMPORTANT
Earn 100

How does the strength of the magnetic field at the centre of a circular coil of a wire depend on the strength of the current flowing in the coil?

Important Questions on Magnetic Effects of Electric Current
HARD
10th CBSE
IMPORTANT
Draw the pattern of field lines due to a solenoid carrying electric current. Mark the North and the South poles in the diagram.

MEDIUM
10th CBSE
IMPORTANT
What are the factors on which the strength of the magnetic field produced by current-carrying solenoid depends?

MEDIUM
10th CBSE
IMPORTANT
With the help of a neat diagram, describe how you can generate induced current in the circuit.

MEDIUM
10th CBSE
IMPORTANT
A coil of copper wire is connected to a galvanometer. What would happen if a bar magnet is (i) pushed into the coil with a North-pole entering first (ii) pulled out of the coil (iii) held stationary inside the coil?

MEDIUM
10th CBSE
IMPORTANT
How does AC differ from DC? What are the advantages and disadvantages of AC over DC?

MEDIUM
10th CBSE
IMPORTANT
Why is a series arrangement not used for domestic circuits?

EASY
10th CBSE
IMPORTANT
Explain what is short-circuiting and overloading in electric supply?

EASY
10th CBSE
IMPORTANT
What is the function of an earth wire? Why is it necessary to earth the metallic appliances?
