Question

In the given circuit diagram R1=5ohm, R2=10Ohm and R3=20ohm calculate that total resistance of circuit

Answer 1

1/Rs=1/R1+1/R2+1/R3

⇒1/Rs=1/5+1/10    | CROSS MULTIPLY

=15/50

⇒50/15=3.33

1/3.33+1/20     | CROSS MULTIPLY

23.33/66.66

⇒66.66/23.33=2.85