QUES. 2 Two identical 900 turn coils A and B lie in parallel plane. A current changing at the rate of 2500 A/s in A induces an emf of 20 V in В. (a)Calculate the mutual inductance of the arrangement (b) produced in coil A per ampere and, the percentage of this flux which links the turns of B If the inductance of each coil is 25MH, calculate the flux (c) Percentage of this flux which links the turns of B
QUES. 2 Two identical 900 turn coils A and B lie in parallel plane. A current changing at the rate of 2500 A/s in A induces an emf of 20 V in В. (a)Calculate the mutual inductance of the arrangement (b) produced in coil A per ampere and, the percentage of this flux which links the turns of B If the inductance of each coil is 25MH, calculate the flux (c) Percentage of this flux which links the turns of B
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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QUES.1 Two air-cored coils are disposed relatively to each other so
that 75% of the flux in one coil links all the turns of the other coil. Each
coil has a cross-sectional mean diameter of 2cm and a length of 50 cm.
If there are 2000 turns of wire on one coil, calculate the number of turns
required on the other coil to give a mutual inductance of 20 mH.
QUES. 2 Two identical 900 turn coils A and B lie in parallel plane. A
current changing at the rate of 2500 A/s in A induces an emf of 20 V in
В.
(a)Calculate the mutual inductance of the arrangement
If the inductance of each coil is 25mH, calculate the flux
produced in coil A per ampere and, the percentage of this flux
which links the turns of B
(c) Percentage of this flux which links the turns of B
QUES. 3 A flux of 0.5 milli-Weber (mWb) is produced by a coil of
900 turns on a ring with a current of 3 A in it. Calculate:
The inductance of the coil
(b) e.m.f. induced in the coil when a current of 5 A is switched off,
assuming the current to fall to zero in 1 millisecond
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