A wire of length 0.5 m and carrying the current of 1.2 amp is placed in a uniform magnetic field of induction 2 tesla. If the magnetic field is perpendicular to the length of the wire, then the force on the wire will be
A)1.2 N
B) 4.8 N
C)2.4 N
D) 1.8 N
Correct Answer:
A
Solution :
The Lorentz force is given by \[F=Bil=2\times 1.2\times 0.5=1.2N\]