List of top Physics Questions on Electromagnetism asked in ICSE Class X board

When the magnet as shown in the diagram, is moved towards the coil at a speed of 5 ms\(^{-1}\), the galvanometer shows a certain deflection to the right.
How will the direction and magnitude of deflection change when the coil also moves with a speed of 5 ms\(^{-1}\):
(a) in the direction of the motion of the magnet?
(b) in the opposite direction of the motion of the magnet?
In an AC generator, name the part which has the following functions:
(a) intensifies the magnetic field.
(b) maintains electrical contact between the rotating parts and the external circuit.
The diagram below shows the top view of the Wire A shown by a cross (X) carrying current into the plane of the paper. Which of the compasses is correctly aligned with the magnetic field, produced by the current carrying wire?