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Measurement, Instrumentation, and Sensors Handbook, Second Edition, 2nd Edition
book

Measurement, Instrumentation, and Sensors Handbook, Second Edition, 2nd Edition

by John G. Webster, Halit Eren
February 2014
Intermediate to advanced content levelIntermediate to advanced
1921 pages
82h 13m
English
CRC Press
Content preview from Measurement, Instrumentation, and Sensors Handbook, Second Edition, 2nd Edition
23-1
Electricity can be thought of as a means of delivering power from one place to another to do work.
e la
ws
an
d
re
lationships
fo
r
de
livering
po
wer
we
re
or
iginally
de
veloped
fo
r
di
rect
cu
rrent
(d
c)
.
Po
wer
de
livered,
ex
pressed
in wa
tts,
wa
s
ca
lculated
by mu
ltiplying
th
e
vo
ltage
an
d
cu
rrent
as sh
own
in
Eq
uation
2
3
.1:
P EI
dc
=
(23.1)
e
sit
uation
be
comes
mo
re
co
mplex
wh
en
al
ternating
cu
rrent
(a
c)
is us
ed
to de
liver
po
wer
. Fi
gure23
.1
sh
ows
a sin
e
wa
ve
re
presenting
ei
ther
ac or vo
ltage
. Si
nce
th
e
in
stantaneous
va
lue
of th
e
wa
ve
is co
n-
tinually changing, a numerical quantity is dened to represent an average property of this wave. is
qu
antity,
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Publisher Resources

ISBN: 9781439848913