Question

when two resistance are in series, they have a value of 25 ohm and in parallel 4 ohm. Find each.

Answer 1

I hope this will help you.

Answer 2

The value of two resistors are 5 ohms and 20 ohms respectively.

Explanation:

Let $R_1\ and\ R_2$ are two resistors. The series combination of resistor is given by :

$R_1+R_2=25$............(1)

The parallel combination of resistor is given by :

$4=\dfrac{R_1R_2}{R_1+R_2}$..............(2)

To find the value of resistors, we need to solve the above equations, we get :

$R_1=5\ \Omega$

And

$R_2=20\ \Omega$

So, the value of two resistors are 5 ohms and 20 ohms respectively.

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Combination of resistors

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