MEDIUM
10th CBSE
IMPORTANT
Earn 100

A coil of insulated copper wire is connected to a galvanometer. What would happen if a bar magnet is held stationary inside the coil?

Important Questions on Magnetic Effects of Electric Current
EASY
10th CBSE
IMPORTANT
Two circular coils and are placed close to each other. If the current in the coil is changed, will some current be induced in the coil ? Give reason.

EASY
10th CBSE
IMPORTANT
Electrical appliances are connected in parallel and not in series. Explain why?

MEDIUM
10th CBSE
IMPORTANT
A circuit has a fuse of . What is the maximum number of bulbs that can be safely used in the circuit?

EASY
10th CBSE
IMPORTANT
What is meant by the term ‘Magnetic field Lines’? List two properties of magnetic field lines.

MEDIUM
10th CBSE
IMPORTANT
Draw the pattern lines of force due to a magnetic field associated with a current-carrying conductor. State how the magnetic field produced changes (i) with an increase in current in the conductor and (ii) the distance from the conductor.

MEDIUM
10th CBSE
IMPORTANT
Draw the magnetic field lines due to a current-carrying circular coil. State the clock rule to find the polarities of the faces of the coil.

MEDIUM
10th CBSE
IMPORTANT
How does the strength of the magnetic field at the centre of a circular coil of wire depend on: the radius of the coil.

EASY
10th CBSE
IMPORTANT
How does the strength of the magnetic field at the centre of a circular coil of wire depend on the number of turns of the wire.
