
170 Circuit calculations pocket book
10 PRINT "PROG 150"
20 PRINT "CURRENT WITH AIR GAP"
30 INPUT "ENTER FLUX IN AIR GAP IN MICROWEBERS" ; PHI
40 INPUT "ENTER LENGTH OF AIR GAP IN MMS" : LA
50 INPUT "ENTER RING FIELD STRENGTH IN AMPS/METRE" ; II
60 INPUT "ENTER RING LENGTH IN MILLIMETRES" ; LR
70 INPUT "ENTER NUMBER OF TURNS" ; N
80 INPUT "ENTER AREA IN SQR CENTIMETRES" ; A
90 LET B=PHI*10M/(A*10*6)
100 LET HA=B*10*7/<4*3.141593)
110 LET M1=HA*LA/10
A
3
120 LET M2=H*LR/10*3
130 LET I=(M1+M2)/N
140 PRINT "CURRENT = " I "AMPS"
10.8 Reluctance, R
m
In Section 10.3 the comparison between the electric circuit and the
magnetic circuit was made, and