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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
Electromagnetism
161
Example
4 If F = 12 N, B = 3 T, and / = 5 m,
calculate
/.
10 PRINT "PROG
133"
20 PRINT "CURRENT"
30 INPUT "ENTER FORCE
IN
NEVTONS"
: F
40 INPUT "ENTER FLUX DENSITY
IN
TESLAS"
; B
50 INPUT "ENTER LENGTH
IN
METRES"
; L
60
LET
I=F/(B*L)
70 PRINT "CURRENT
= " I
"AMPS"
10.2
E.m.f.
generated,
E
With uniform flux density
B
teslas
When
a
conductor cuts
or is cut by a
magnetic field,
an e.m.f. is
generated
in the
conductor.
The
magnitude
of the
generated
e.m.f.
depends
on the
rate
at
which
the
conductor cuts
or is cut by the
magnetic field.
The
required formula
is
E
= Blv
where
E =
electromotive force
in
volts,
V
B
=
magnetic flu ...
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Publisher Resources

ISBN: 9781483101132