Write a concise response to the question given.
Mona was doing an experiment with a magnetic compass and a straight current-carrying wire. She observed that as she moved the compass away from the current-carrying wire, the deflection of the compass needle reduced.
Explain why the deflection of the compass needle reduced as Mona moved away the compass needle from the current carrying wire.
Magnetic field strength is to the . Hence when Mona moved the compass away from the current carrying wire, the magnetic effect was on it and hence the deflection was less.