Judge the equivalent resistance when the following are connected in parallel:
(a) 1 and 106
(b) 1,103
and 106
(a) The equivalent resistance of two resistances 1and 106
connected in parallel will be less than 1
.This is because when a number of resistances are connected in parallel, then their equivalent resistance is less than the smallest individual resistance. Here, since the smallest resistance is 1
. Therefore, the net resistance will be less than 1
(b) The equivalent resistance of three resistances1,103
and 106
connected in parallel will be less than 1
because the smallest resistance is 1
.