Question

when two equal resistances are connected in series and parallel combination. find equivalent resistance in both cases.

Answer 1

Let resistance of each resistor be R.

When these are connected in series then there equivalent is given by $R_s = R + R = 2R$

When these are connected in parallel then equivalent resistance will be $R_p = \frac{RR}{R+R} = \frac{R}{2}$