Lesson: The Magnetic Force between Parallel Constant Currents

In this lesson, we will learn how to calculate the magnetic force between two parallel current-carrying wires.

Sample Question Videos

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Worksheet: 5 Questions • 1 Video

Q1:

The two long parallel wires shown in the figure carry currents in the same direction. If A and A, where cm, what is the magnetic field at point ?

Q2:

What is the magnitude of the magnetic field at ?

What is the magnitude of the magnetic field at

Q3:

Two long straight wires are parallel and 65 cm apart. If each wire carries a current of 80 A in the same direction, what is the magnetic force per unit length exerted on each wire?

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