Unformatted text preview: Quiz 5: Ch 1920 FORM C Problem 1 In the diagram the current in the long, straight wire is 11=5.00 A and the wire lies in the
plane of the rectangular loop which carries a current of 10.0 A. The dimensions shown
are c=0. 100 m, a=0. 150m and l=0.450 111. Find the magnitude and direction of the net force exerted by the magnetic ﬁeld due to the straight wire on the loop. a) Fm=5.40x10'5 N to the right
F__=l.35x10‘5 N to the left
_.
 n,¢=l.35x10' N to the n Problem 2
What current is required in the windings of a long solenoid that has 1000 turns uniformly distributed over a length of 0.400 m in order to produce a magnetic ﬁeld of magnitude
1.00x104‘T at the center of the solenoid? \ d) 1= l.40A e) I = 0.20 A
Problem 3 A wire loop of radius 0.30 m lies so that an external magnetic ﬁeld of magnitude 0.30 T
is perpendicular to the loop. The ﬁeld reverses its direction and its magnitude changes to
0.20 T in 1.5 5. Find the magnitude of the average induced emf in the loop during this time. a) e=l9mV
b) a=38mV ci i=57mV
e) e=6m' I ...
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 Spring '10
 Kummel

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