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.

Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter7: Symmetrical Faults
Section: Chapter Questions
Problem 7.21MCQ
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LAB 2.pdf
Assignment1.pdf
EEB434 Tutorial.pdf
E *Assignment 2 (2021).pdf
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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
4:46 PM
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27°C Light rain
11/25/2021
Transcribed Image Text:LAB 2.pdf Assignment1.pdf EEB434 Tutorial.pdf E *Assignment 2 (2021).pdf advanced-mathematical-tech O File C:/Users/Kelekwe/Downloads/Assignment%202%20(2021).pdf ... CD Page view A Read aloud O Add text V Draw - Highlight O Erase 2 of 2 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 4:46 PM O Type here to search 27°C Light rain 11/25/2021
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