Q. 20 A4.1( 20 Votes )

# Given n resistors

Total number of resistors = n

Resistance of each resistor = R

(i)

When n resistors are connected in series, effective resistance R1is the maximum,

given by the product nR.

Hence, maximum resistance of the combination, R1 = nR

(ii)

When n resistors are connected in parallel, the effective resistance (R2) is the minimum, given by the ratio: R/n

Hence, minimum resistance of the combination, R2 = R/n

(iii) The ratio of the maximum to the minimum resistance is,

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