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The magnetic field lines produced by a bar magnet:
(a) originate from the south pole and end at its north pole
(b) originate from the north pole and end at its east pole
(c) originate from the north pole and end at its south pole
(d) originate from the south pole and end at its west pole
The strength of the magnetic field between the poles of an electromagnet would be unchanged if:
A current flows downwards in a wire that passes vertically through a table top. Will the magnetic field lines around it go clockwise or anticlockwise when viewed from above the table?
What is a natural magnet? State two limitations of a natural magnet.
What do you understand by the term magnetic field lines?
State whether the magnetic field lines in part (a) represent a uniform magnetic field or non-uniform magnetic field?
Complete the following sentence :
If the field lines in a magnetic field are parallel and equidistant, the magnetic field is __________ .
A charge of 5000 C flows through an electric circuit in 2 hours and 30 minutes. Calculate the magnitude of current in a circuit.
Complete the following diagram of magnets to show the lines of force.

