Question

Menton any two uses of magnets
a) What is an electromagnet?
Name the material which can be used to make a permanent magnet and
La State two ways by which the strength of an electromagnet can be increase
What is a solenoid? Draw magnetic field lines due to a current-carrying stran
atures of the magnetic field chained
Traw the magnetic field lines, including the directions, due to a long stranchi
any two factors on which the magnitude of the field inside a solenoid depend
ate the rule to determine the direction of force experienced by a current-cam
How will this force get affected on (a) doubling the magnitude of current and
Row?
With the help of a diagram, describe an experiment to show that a change
induces an electric current in a neighbouring coil.
A coil made of insulated copper wire is connected to a galvanometer. What
anometer if a bar magnet is pushed into the coil and then pulled out of​

Answer 1

two uses of magnet are as follows,

electric motors

holding things

compass