
10 Circuit calculations pocket book
10 PRINT "PROG 7"
20 PRINT "CONDUCTOR RADIUS"
30 INPUT "ENTER RESISTIVITY IN OHM METRE" ; RHO
40 INPUT "ENTER LENGTH IN METRES" ; L
50 INPUT "ENTER RESISTANCE IN OHMS" ; R
60 LET A=RHO*L/R
65 PRINT "A = " A
70 LET RAD=SQR(A*10*6/3.142)
80 PRINT "RADIUS = " RAD "MILLIMETRES"
(b) Temperature coefficient of resistance
The resistance of a conductor also depends on its temperature. The
resistance, for example, of pure metals increases with temperature,
and the temperature coefficient a (Greek letter alpha) is the
fractional increase of the resistance per degree increase of the
temperature, above a defined temperature ...