1.
A coil carrying current behaves as a/an
3.
A carbon microphone is best used in a
4.
Which of the following figures represents the magnetic lines of force due to an isolated north pole?
5.
Which of the following figures represent the magnetic lines of force due to an isolated south pole
8.
Electromagnets are used in
9.
The magnetic effect of electric current was discovered by
10.
An electric current predominantly produces overline field around it.