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An iron rod, 2 cm in diameter and 20 cm long is bent into a closed ring and is wound with 3000 turns of wire. It is found that when a current of 0.5 A is passed through this coil, the flux density in the coil is 0.5 Wb/m2. Assuming that all the flux is linked with every turn of the coil, what is (b) the inductance of the coil? (c)What voltage would be developed across the coil if the current through the coil is interrupted and the flux in the iron fails to 10 % of its former value in 0.001 second ?

An iron rod, 2 cm in diameter and 20 cm long is bent into a closed ring and is wound with 3000 turns of wire. It is found that when a current of 0.5 A is passed through this coil, the flux density in the coil is 0.5 Wb/m2. Assuming that all the flux is linked with every turn of the coil, what is (b) the inductance of the coil? (c)What voltage would be developed across the coil if the current through the coil is interrupted and the flux in the iron fails to 10 % of its former value in 0.001 second ?

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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An iron rod, 2 cm in diameter and 20 cm long is bent into a closed ring and is wound with 3000 turns of wire. It is found that when a current of 0.5 A is passed through this coil, the flux density in the coil is 0.5 Wb/m2. Assuming that all the flux is linked with every turn of the coil, what is (b) the inductance of the coil? (c)What voltage would be developed across the coil if the current through the coil is interrupted and the flux in the iron fails to 10 % of its former value in 0.001 second ?
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