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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
a.c. circuits 177
Example 7 Let V
c
= 240 V, 50 Hz, and I
c
= 0.5 A. Calculate C.
V 240
X
c
= = = 480 n
Ic 0.5
480
=
1 1
2ir/C 2 x
TT
x 50 x C
1
C = F
2 x IT x 50 x 480
10
6
- uP = 6.63
JJLF
2 x
TT
x 50 x 480
10 PRINT "PROG 159"
20 PRINT "CAPACITANCE"
30 INPUT "ENTER CURRENT IN AMPS" ; IC
40 INPUT "ENTER VOLTAGE" ; VC
50 INPUT "ENTER FREQUENCY" : F
60 LET XC=VC/IC
70 LET C=10*6/(2*3.141593*F*XC)
80 PRINT "CAPACITANCE = " C "MICROFARADS"
Example 8 Let V
c
= 2000 V, I
c
= 1 mA = 1 x 10
3
A, and
C = 100 pf = 100 x 10~
12
F. Calculate/.
Vc 2000 . ,
X
c
= = ^ = 2000 x 10
3
= 2 x 10
6
a
*
c
/_
1
v m-3
2 x 10
6
I
c
1 x 10~
1
2TT/C
1
2xirxCx2xl0
6
1
2 x T
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Publisher Resources

ISBN: 9781483101132