Skip to Main Content
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
244
Circuit calculations pocket book
Find
the
internal resistance
and the e.m.f.
12
= E - lOr
10
= E - 20>
Subtract
2 = lOr
2
r=—
= 0.2 ft
10
E=V+Ir
=
12 + (10 x 0.2) =
14
V
10 PRINT "PROG
211"
20 PRINT "INTERNAL RESISTANCE
AND
E.M.F"
30 INPUT "ENTER VOLTAGE READING
1" : VI
40 INPUT "ENTER CURRENT READING
1" : II
50 INPUT "ENTER VOLTAGE READING
2" ; V2
60 INPUT "ENTER CURRENT READING
2" ; 12
70
LET
R=(V1-V2)/(I2-I1)
80 PRINT "INTERNAL RESISTANCE
= " R
"OHMS
90
LET
E=V1+(I1*R)
100 PRINT "BATTERY
E.M.F = " E
"VOLTS"
14.2
Battery connections
(a) Series
This
is the
arrangement encountered most frequently. Figure
14.2
shows three cells, each wit ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Power Supplies for LED Driving, 2nd Edition

Power Supplies for LED Driving, 2nd Edition

Steve Winder

Publisher Resources

ISBN: 9781483101132