Multiple Choice
The figure shows two long,parallel current-carrying wires.The wires carry equal currents
I1 = I2 = 20 A in the directions indicated and are located a distance d = 0.5 m apart.Calculate the magnitude and direction of the magnetic field at the point P that is located an equal distance d from each wire.(μ0 = 4π × 10-7 T • m/A) 
A) 8 µT downward
B) 8 µT upward
C) 4 µT downward
D) 4 µT upward
E) 4 µT to the right
Correct Answer:

Verified
Correct Answer:
Verified
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