20. Two parallel wires have currents of 5 A and 3 A in opposite direction. The distance between them is 24 cm. Find the force of interaction per unit length. i.e. L= 1.0000 meter a. 1.25 x 10 N/m b. 3.93 x 10 N/m c. 1.25 x 10 N/m d. 3.93 x 103 N/m
20. Two parallel wires have currents of 5 A and 3 A in opposite direction. The distance between them is 24 cm. Find the force of interaction per unit length. i.e. L= 1.0000 meter a. 1.25 x 10 N/m b. 3.93 x 10 N/m c. 1.25 x 10 N/m d. 3.93 x 103 N/m
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Question
20
Transcribed Image Text:A * NI Q M 14% Ô 4:08 PM
а. 73 m/s
b. 10655 m/s
с. 103.3 m/s
d. none of these
19. find the radius of the circular path of the moving charge in the B field.
а. 1291.3 m
b. 12.91 m
c. 912.5 m
d. 344 m
20. Two parallel wires have currents of 5 A and 3 A in opposite direction. The distance between them
is 24 cm. Find the force of interaction per unit length. i.e. L= 1.0000 meter
a. 1.25 x 10 N/m
b. 3.93 x 10° N/m
с. 1.25 х 105 N/m
d. 3.93 x 103 N/m
21. A multi-loop wire of 150 turns is placed in a uniform magnetic field that is parallel to the normal of
the loop. The strength of the magnetic field is 3.00 T, the area of the loop begins shrinking at a
constant rate of AA/At = 0.40 m²/sec. What is the magnitude of the emf induced in the loop while it is
shrinking?
a. 180 V
b. 1125 V
c. 20.0 V
d. 38.4 V
22. An inductor with inductance of 50 mH is placed in a circuit. When the current suddenly drops from
5.5 A to 2.1 A in 8.00 sec, what is the magnitude of the induced emf?
a. 0.034 V
b. 13.1 V
c. 0.021 V
d. 0.013 V
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