Multiple Choice
A wire of a certain length, carrying a current of 2.0 A, is placed perpendicular to a magnetic field of strength 0.20 T. If the wire experiences a force of 0.40 N what is the length of the wire?
A) 2.0 m
B) 3.0 m
C) 1.0 m
D) 20 m
E) 40 m
Correct Answer:

Verified
Correct Answer:
Verified
Q73: Two long parallel wires carry currents of
Q74: A proton moving with a velocity of
Q75: Long parallel wires separated by 7.5 cm
Q76: Four long parallel wires each carry 2.0
Q77: FIGURE 22-8 <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6213/.jpg" alt="FIGURE 22-8
Q79: FIGURE 22-8 <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6213/.jpg" alt="FIGURE 22-8
Q80: FIGURE 22-8 <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6213/.jpg" alt="FIGURE 22-8
Q81: An electron moving in the positive y
Q82: The field near a long straight wire
Q83: An electron, moving west, enters a magnetic