The two wires shown in the figure below are separated by d = 12.0 cm and carry c

Question

The two wires shown in the figure below are separated by d = 12.0 cm and carry currents of I = 4.80 A in opposite directions. (a) Find the magnitude and direction of the net magnetic field at a point midway between the wires. magnitude muT direction (b) Find the magnitude and direction of the net magnetic field at point P_1, 12.0 cm to the right of the wire on the right. magnitude muT direction (c) Find the magnitude and direction of the net magnetic field at point P_2, 2d = 24.0 cm to the left of the wire on the left. magnitude muT direction

Explanation / Answer

here,

d = 0.12 m

I = 4.8 A

magnetic feild strength , B = u0* I/( 2*pi *r)

(a)

at the midway between them ,

the magneic feild is zero as magnetic feild due to both wire cancels out

(b)

at point P1 ,

B = u0 * I /2pi * ( 1/d - 1/2d)

B = 1.26 * 10^-6 * 4.8/( 2 * pi) * ( 1/0.12 - 1/0.24)

B = 4.01 * 10^-6 T

the magnetic feild is 4.01 * 10^-6 T out of the page

(c)

at point P2 ,

B = u0 * I /2pi * ( 1/3d - 1/2d)

B = 1.26 * 10^-6 * 4.8/( 2 * pi) * ( 1/0.36 - 1/0.24)

B = - 1.33 * 10^-6 T

the magnetic feild is 1.33 * 10^-6 T into the page

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