You are supplied with a number of 100 - resistors- How could you combine some of these resistors to make a 250 - resistor-

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Physics

Equivalent Resistance of a System of Resistor

You are suppl...

Question

You are supplied with a number of 100 Ω resistors. How could you combine some of these resistors to make a 250 Ω resistor?

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Solution

When two 100 Ω resistors are connected in parallel, the value of the combined resistance becomes 50 Ω.
Now to get a resistance of 250 Ω, we must connect two more 100 Ω resistors in series with the above combination.
Therefore, the configuration will be two 100 Ω resistors in series with a parallel combination of another two 100 Ω resistors.

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