April 2016
Intermediate to advanced
384 pages
12h 56m
English
Content preview from Newnes Circuit Calculations Pocket Book
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10 Electromagnetism
10.1 Force on a conductor, F
A current-carrying conductor placed in a magnetic field has a force
exerted on it where
Force = Bll
where force, F is in newtons
B = magnetic flux density in teslas, T
/ = conductor length in metres, m
/ = current in amperes, A
Example 1 A conductor carrying 50 A is at right angles to a
magnetic field having a density of 0.5 T. Calculate the force on the
conductor in newtons per metre length.
F= Bll
= 0.5 x 1 x 50 = 25 N
10 PRINT "PROG 130"
20 PRINT "FORCE ON A CONDUCTOR"
30 INPUT "ENTER FLUX DENSITY IN TESLAS" ; D
40 INPUT "ENTER LENGTH IN METRES" : L
50 INPUT "ENTER CURRENT IN AMPS" ; I
60
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