Multiple Choice
The magnetic field due to the current in a long, straight wire is 8.0 μT at a distance of 4.0 cm from the center of the wire. What is the current in the wire?
A) 0.20 A
B) 0.40 A
C) 0.80 A
D) 3.2 A
E) 1.6 A
Correct Answer:

Verified
Correct Answer:
Verified
Q25: A proton is projected with a velocity
Q26: Two long, parallel wires carry currents of
Q27: FIGURE 22-7 <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6213/.jpg" alt="FIGURE 22-7
Q28: The magnetic field at a certain distance
Q29: An electron moves with a speed of
Q31: An electron moving along the +x-axis enters
Q32: FIGURE 22-6 <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6213/.jpg" alt="FIGURE 22-6
Q33: If two identical wires carrying a certain
Q34: A wire carrying a current that placed
Q35: Two long parallel wires carry currents of