A circuit designer needs an equivalent resistance of between points X and Y using…
PHYSICS · Single correct · A Level · Physics · Electricity · Electricity
Problem
A circuit designer needs an equivalent resistance of 8Ω between points X and Y using only identical 12Ω resistors. What is the smallest number of such resistors that can be connected to achieve exactly 8Ω?
(a) 4
(b) 3
(c) 2
(d) 6