Question

A straight wire of length 0.5 metre and carrying a current of 1.2 ampere is placed in a uniform magnetic field of induction 2 tesla. If the magnetic field is perpendicular to the length of the wire , the force acting on the wire is

A. 2.4N
B. 1.2N
C. 3.0N
D. 2.0N

Answer 1

The force acting on the wire is 1.2N. Therefore, the correct option is B.

Step-by-step explanation:

The force acting on a straight wire carrying a current in a uniform magnetic field can be determined using the equation:

F = BIL

Where F is the force, B is the magnetic field induction, I is the current, and L is the length of the wire.

Using the given values:

F = (2 T)(1.2 A)(0.5 m) = 1.2 N

Therefore, the force acting on the wire is option B. 1.2N.