Question

A resistor of 10ohm is combined in parallel with another resistor of 'X'ohm.The resultant resistance of the combination is found to be 3.75 ohm.What is the value of 'X'?
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Answer 1

Answer:

$\frac{1}{10} + \frac{1}{x} = \frac{1}{3.75}$

$\frac{1}{x} = \frac{1}{3.75} - \frac{1}{10}$

$\frac{1}{x} = \frac{10 - 3.75}{37.5}$

$\frac{1}{x} = \frac{6.25}{37.5}$

$x = \frac{37.5}{6.25}$

$x = 6$

So, the answer is 6ohm.

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Answer 2

Answer:

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