//Example 1_16 page no:18
clc
R1=10;//Resistance in ohm
R2=20;//Resistance in ohm
R3=30;//Resistance in ohm
R4=40;//Resistance in ohm
R=(1/R1+1/R2+1/R3+1/R4)
Rt=1/R
disp(Rt,"Total resistance (in ohm)")