1.

Answer it accurately.​

Answer»

ong>Total number of resistances = n

In case of parallel combination,

\frac{1}{resultant \: resistance} = \frac{1}{<klux>R</klux>} + \frac{1}{r} + \frac{1}{r} + \frac{1}{r} + \frac{1}{r} + \frac{1}{r} + (upto \: n \: times) = \frac{n}{r}

or, resultant resistance = r/n

or, x = r/n (since the value of resultant resistance is given n)

or, r = nx

So, the value of each resistances = r = nx

The PROBLEM is not finished! wait (-_^)

For SERIES, resultant resistance = r+r+r+r+r+r+r+ (upto n times) = nr = n×nx (since, r = nx) = n²x [Ans.]

CORRECT answer is (C) xn²


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