Question

Two resistance X and Y are connected turn by turn : 1) in parallel and 2) in series. In which case the resultant resistance will be less than eithervof the individual resistance.​

Answer 1

Answer:

in parallel

Explanation:

Answer 2

Explanation:

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Two resistance X and Y and are connected in series then the total resistance will be increasedbecause series combination gives maximum resistance. When the X and Y are connected in parallel the total resistance will be less because it gives minimum resistance.

1. When they are connected in parallel:-

$\boxed{ \frac{1}{R} = \frac{1}{R1} + \frac{1}{R2} }$

$\boxed{ \frac{1}{R} = \frac{1}{x} + \frac{1}{y} }$

$\boxed{ \frac{1}{R} = \frac{x + y}{xy} }$

$\boxed{ R = \frac{xy}{x + y} }$

2. When they are connected in series

$\boxed{R = R1 + R2}$

$\boxed{R = x + y}$