MEDIUM
10th CBSE
IMPORTANT
Earn 100
A circular wire is carrying a current. Sketch the shape of the magnetic field lines in a plane that is perpendicular to the plane of the wire and passes through its centre.
Important Questions on Magnetic Effect of Electric Current
MEDIUM
10th CBSE
IMPORTANT
A circular loop carrying a current is placed on a horizontal surface. As seen from above, the current is in the clockwise direction. What is the direction of its magnetic field at the centre? What is the direction of the magnetic field at a point outside the surface of the loop?
EASY
10th CBSE
IMPORTANT
A vertical wire is carrying a current in the upward direction. It is placed in a magnetic field pointing towards the east. Find the direction of the force on the wire.
MEDIUM
10th CBSE
IMPORTANT
A beam of electrons can be thought of as an electric current whose direction is opposite the direction of the moving electrons. Suppose you find that an electron beam coming towards you horizontally through a magnetic field gets deflected towards your right. What is the direction of the magnetic field that bends the beam?
EASY
10th CBSE
IMPORTANT
A wire loop is moved into a magnetic field. You have to find the direction of the current in a portion of the loop that is moving perpendicular to the field. Will you use Fleming's left-hand rule or right-hand rule?
MEDIUM
10th CBSE
IMPORTANT
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?
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.
