Two infinite parallel conductors carry currents of '20 A' each. The magnitude of the force between the conductor per metre length if the distance between them is '20 cm' is __________.

Question

Question

This question was previously asked in

KVS TGT WET (Work Experience Teacher) 8 Jan 2017 Official Paper

Answer 1

Concept:

The magnitude of the force between the conductor is given by

Where;

I_1,2 → current carried by the conductors

l → Length

d→ Distance between conductors

Calculation:

Given;

I1,2 → current carried by the conductors = 20 A

d→ Distance between conductors = 20 cm = 0.2 m

Then;

The magnitude of the force per meter between the conductor is given by;