Question

Determine the absolute value of the magnetic field in the attached drawing. Two parallel wires carry a current of 4 Amperes in the same direction. The wires are separated by a distance D=8.2cm, and the point M is a distance L=5.0cm to the right of the right-most wire. Express your answer in µT.

Answer 1

Since the figure is not provided, the calculations are based on the figure below.

The absolute value of the magnetic field at point M will be equal to the sum of individual magnetic field due to each wire.

Magnetic field due to right wire

I = 4A

d = 5cm = 0.05m

Therefore Magnetic field due to right wire at M is given by,

Magnetic field due to left wire

I = 4A

d = (5+8.2)cm = 13.2cm = 0.132m

Therefore Magnetic field due to left wire at M is given by,

Therefore total magnetic field at point M is given by,

(Ans.)