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
Q2: Two very long parallel wires are a
Q3: Two very long parallel wires in the
Q4: A cylindrical insulated wire of diameter 5.0
Q5: The figure shows two long wires carrying
Q6: A 1000-turn toroidal solenoid has a central
Q7: A solenoid is wound with 970 turns
Q8: The figure shows three long,parallel,current-carrying wires.The current
Q10: A point charge Q moves on the
Q41: Two long parallel wires carry currents of
Q68: A solenoid having N turns and carrying