Answered: Figure E27.41 В ь Hinge |20.0 cm 5.00 A…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter26: Vision And Optical Instruments

Section: Chapter Questions

Problem 1PE: What is the power of the eye when viewing an object 50.0 cm away?

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27.41 The 20.0 cm x 35.0 cm rectangular circuit shown in Fig. E27.41 is hinged along side ab. It carries a clockwise 5.00-A current and is located in a uniform 1.20-T magnetic field oriented perpendicular to two of its sides, as shown.

(a) Draw a clear diagram showing the direction of the force that the magnetic field exerts on each segment of the circuit (ab, bc, etc.).

(b) Of the four forces you drew in part (a), decide which ones exert a torque about the hinge ab. Then calculate only those forces that exert this torque.

(c) Use your results from part (b) to calculate the torque that the magnetic field exerts on the circuit about the hinge axis ab.

Figure E27.41
В
ь
Hinge
|20.0 cm
5.00 A
35.0 cm

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