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Newnes Circuit Calculations Pocket Book
book

Newnes Circuit Calculations Pocket Book

by Thomas J. Davies
April 2016
Intermediate to advanced content levelIntermediate to advanced
384 pages
12h 56m
English
Newnes
Content preview from Newnes Circuit Calculations Pocket Book
132
Circuit calculations pocket book
where M is in henrys
/ is in amps
t is in seconds
e
x
=
e.m.f.
in 1st coil
I
2
= current in 2nd coil
Example 16 The mutual inductance between two coils is 0.5 H.
Calculate the average voltage induced in one coil when the current
in the other coil is increased from 1 A to 10 A in 150 mS.
d/ = 10 - 1 = 9 A
0.5 x 9 0.5 x 9 x 10
3
e = = = 30 V
150 x 10"
3
150
10 PRINT "PROG HO"
20 PRINT "INDUCED E.M.F"
30 INPUT "ENTER MUTUAL INDUCTANCE IN HENRYS" ; L
40 INPUT "ENTER INITIAL CURRENT IN AMPS" ; II
50 INPUT "ENTER FINAL CURRENT IN AMPS" ; 12
60 INPUT "ENTER TIME IN MILLISECONDS" ; MS
70 LET 1=12-11
80 LET E=L*I*(10*3/MS ...
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Publisher Resources

ISBN: 9781483101132