Question

Question 6
What is the maximum resistance which can be made using five resistors each of $\frac{1}{5}\Omega$?

(a) $\frac{1}{5}\Omega$
(b) $10\Omega$
(c) $5\Omega$
(d) $1\Omega$

Answer 1

(d) $1\Omega$

Maximum resistance will be achieved when all the resistors are connected in series.
Therefore $R_{max}=(\frac{1}{5}+\frac{1}{5}+\frac{1}{5}+\frac{1}{5}+\frac{1}{5})=1\Omega$