Physics 100B - General Physics II » Spring 2022 » Quiz 4
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Question #1
At a distance of rr, a wire with current II has a magnetic field of magntude B. What is the magnitude of the magnetic field at a distance r/5?
A.
25B
B.
B/25
C.
B/5
D.
5B
Question #2
A 0.25 m straight wire carries a current of 1.90 AAexperiences a force of 0.95 N while passing through a magnetic field at an 30 ∘ angle. What is the magnitude of the magnetic field?
A.
4.00 T
B.
2.00 T
C.
6.67×10−2 T
D.
0.475 T
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