Question

FOUR RESISTOR OF RESISTANCE 1ohms,5ohms,3ohms,and 4ohms.are connected In Parallel.calculate The Value Of Resistance

Answer 1

The easy way for resistances in parallel is to think the inverse of resistance, conductance. In parallel, conductances add

C= 1/R = 1/1 + 1/5 + 1/3 + 1/4
= 180/180 + 36/180 + 60/180 + 45/180
= 321/180
so
R = 1/C = 180/321 = 0.561 Ohms