Question

If the intensity of the magnetic field is 100T, the length of the conductor is 10m and the magnitude of force perpendicular to the magnetic field is 10kN,calculate the current in the conductor.

(a) 100 A

(b) 100 mA

(c) 10 A

(d) 10 mA

This question was posed to me in class test.

Asked question is from Force Determination topic in chapter Electromagnetism of Basic Electrical Engineering

Answer 1

The correct choice is (c) 10 A

The explanation: The formula for calculating the value of the force which is perpendicular to the magnetic field is:

F=Bil

Substituting the values from the question, we get i = 10A.