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A rectangular coil, measuring 30cm by 20 cm and having 40 turns, is rotated about an axis coinciding with one of its longer sides at a speed of 1500 r/min in a uniform magnetic field of flux density 0.075T. Find, from the first principles, an expression for the instantaneous emf induced in the coil, if the flux is at right angle to the axis of rotation. Evaluate this emf at an instant 0.002s after the plane of the coil has been perpendicular to the field. (28.27sin157t V, 26.89 V)

A rectangular coil, measuring 30cm by 20 cm and having 40 turns, is rotated about an axis coinciding with one of its longer sides at a speed of 1500 r/min in a uniform magnetic field of flux density 0.075T. Find, from the first principles, an expression for the instantaneous emf induced in the coil, if the flux is at right angle to the axis of rotation. Evaluate this emf at an instant 0.002s after the plane of the coil has been perpendicular to the field. (28.27sin157t V, 26.89 V)

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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can you put some explaination to it..tq so much

A rectangular coil, measuring 30cm by 20 cm and having 40 turns, is rotated about an axis coinciding with one of its longer sides at a speed of 1500 r/min in a uniform magnetic field of flux density 0.075T. Find, from the first principles, an expression for the instantaneous emf induced in the coil, if the flux is at right angle to the axis of rotation. Evaluate this emf at an instant 0.002s after the plane of the coil has been perpendicular to the field. (28.27sin157t V, 26.89 V)
Transcribed Image Text:A rectangular coil, measuring 30cm by 20 cm and having 40 turns, is rotated about an axis coinciding with one of its longer sides at a speed of 1500 r/min in a uniform magnetic field of flux density 0.075T. Find, from the first principles, an expression for the instantaneous emf induced in the coil, if the flux is at right angle to the axis of rotation. Evaluate this emf at an instant 0.002s after the plane of the coil has been perpendicular to the field. (28.27sin157t V, 26.89 V)
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