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 ?

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter29: Dc Generators

Section: Chapter Questions

Problem 1PA: You are working as an electrician in a large steel manufacturing plant, and you are in the process...

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