Magnetism and Electromagnetism
How does the magnetic compass needle behave in a magnetic field?

It assures a position which follows a line of magnetic flux
None of the listed here
It starts rotating
It assures a position right angle to magnetic field

ANSWER DOWNLOAD EXAMIANS APP

Magnetism and Electromagnetism
The magnetomotive force is

The passage of magnetic field through an exciting coil
The sum of all currents embraced by one line of magnetic field
The voltage across the two ends of exciting coil
The flow of an electric current

ANSWER DOWNLOAD EXAMIANS APP