MEDIUM
10th CBSE
IMPORTANT
Earn 100
An electric current is passed through a copper wire by connecting its ends to a battery. It is kept between the poles of a strong horseshoe magnet. There is a force on the wire due to the magnet. If you interchange the connections to the positive and negative terminals of the battery, and also the positions of the north and south poles of the magnet, what will be the change in the force on the wire due to the magnet?
Important Questions on Magnetic Effect of Electric Current
EASY
10th CBSE
IMPORTANT
What is the purpose of Fleming's right-hand rule?
EASY
10th CBSE
IMPORTANT
A motor converts energy from one form to other. Name the two forms in sequence.
EASY
10th CBSE
IMPORTANT
A generator converts energy from one form to other. Name the two forms in sequence.
EASY
10th CBSE
IMPORTANT
Which wire (live, neutral or earth) goes through a switch?
EASY
10th CBSE
IMPORTANT
Are different electric appliances connected in series or parallel in a house?
EASY
10th CBSE
IMPORTANT
What is the colour convention for live, neutral and earth wires?
EASY
10th CBSE
IMPORTANT
State Maxwell's right-hand thumb rule for finding the direction of the magnetic field due to a current-carrying straight wire.
HARD
10th CBSE
IMPORTANT
Why does a compass needle get deflected when a magnet is brought near it? Explain in terms of the magnetic field.
