A long, straight current-carrying wire has a circular loop with a 17.66-mm radius. If the current flowing through this closed loop is 35.5 A, what is the magnitude of the magnetic field due to this current? a. 2.01 x 10-4 T b. 20.1 x 10-4 T c. 4.02 x 10-4 T d. 40.2 x 10-4 T
1. A long, straight current-carrying wire has a circular loop with a 17.66-mm radius. If the current flowing through this closed loop is 35.5 A, what is the magnitude of the magnetic field due to this current?
a. 2.01 x 10-4 T
b. 20.1 x 10-4 T
c. 4.02 x 10-4 T
d. 40.2 x 10-4 T
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A solenoid is being constructed to yield a uniform 0.559-T magnetic field near its center. Suppose a given extremely long wire is available to make 6000 circular turns around this conductor. If the solenoid has to be 45.0-cm long and 6.8-cm in diameter, how much
electric current is needed to produce the given field?
a. 33.35 A
b. 3.34 A
c. 47.88 A
d. 4.79 A
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A long, straight current-carrying wire has a circular loop with a 40-mm radius. If the current flowing through this closed loop is 5.9 A, what is the magnitude of the magnetic field due to this current?
a. 2.95 x 10-5 T
b. 3.77 x 10-5 T
c. 1.99 x 10-5 T
d. 4.75 x 10-5 T
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