This diagram shows a rectangular metal frame PQRS placed in a uniform magnetic field. The magnetic flux
Question:
This diagram shows a rectangular metal frame PQRS placed in a uniform magnetic field.
The magnetic flux density is 4.5 × 10−3 T and the current in the metal frame is 2.5 A.
a. Calculate the force experienced by side PQ of the frame.
b. Suggest why side QR does not experience a force.
c. Describe the motion of the frame immediately after the current in the frame is switched on.
d. Calculate the maximum torque (moment) exerted about an axis parallel to side PQ.
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Related Book For 
Cambridge International AS And A Level Physics Coursebook
ISBN: 9781108859035
3rd Edition
Authors: David Sang, Graham Jones, Gurinder Chadha, Richard Woodside
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