Let n represent the number of similar resistors in a circuit. Each resistor has a resistance of r. When the resistors are connected in parallel the circuit has a total resistance of R. What would the total resistance of the circuit be if the resistors were instead connected in series?

Answer 1

parallel= resistance= R=rEach/n

series= n*reach=n*n*R= n^2 R

Answer 2

1/R = n/r
so
R = r/n

in series R = n r