Two resistors, each of 10 Ω are connected in parallel. The combination is connected in series to a third resistor of 10 Ω. The equivalent resistance of this arrangement is:
1
\(\rm \left[\frac{20}{3}\right]\Omega\)
2
30 Ω
3
15 Ω
4
\(\rm \left[\frac{10}{3}\right]\Omega\)