Multiple Choice
Two parallel,straight wires are 7.0 cm apart and each carries a 18.0 A current in the same direction.One wire is securely anchored,and the other is attached in the center to a movable cart.If the force needed to move the wire when it is not attached to the cart is negligible,with what force does the wire pull on the cart? Both wires are 50.0 m long.
A) 4600 dynes
B) 370 dynes
C) 660 dynes
D) 9300 dynes
Correct Answer:

Verified
Correct Answer:
Verified
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