You are given 10 resistors each of resistance `2 Omega`. First they are connected to obtain possible minimum resistance. Then they are connected to obtain possible maximum resistance. The ratio of maximum and minimum resistance is .... .

Options

A. 100
B. 10
C. 2.5
D. 25

Answer

A

Explanation

100
Minimum resistance : `R_("max") = 10 xx 2 = 20 Omega`
Minimum resistance : `R_("min") = (2)/(10) = 0.2 Omega`
`therefore (R_("max"))/(R_("min")) = (20)/(0.2) = 100`