Question -
Answer -
Length of the wire,┬аl┬а=3 cm = 0.03 m
Current flowing in thewire,┬аI┬а= 10 A
Magnetic field,┬аB┬а=0.27 T
Angle between the current andmagnetic field,┬а╬╕┬а= 90┬░
Magnetic force exerted on thewire is given as:
F┬а=┬аBIlsin╬╕
= 0.27 ├Ч 10 ├Ч 0.03 sin90┬░
= 8.1 ├Ч 10тАУ2┬аN
Hence, the magnetic force on thewire is 8.1 ├Ч 10тАУ2┬аN. The direction of the force can beobtained from FlemingтАЩs left hand rule.