Question

Using only 20kΩ resistors, design an equivalent circuit that gives a total resistance of 30kΩ.

Answer 1

To design an equivalent circuit with a total resistance of 30kΩ using only 20kΩ resistors, connect two resistors in series and then connect this combination in parallel with another 20kΩ resistor.

Step-by-step explanation:

To design an equivalent circuit with a total resistance of 30kΩ using only 20kΩ resistors, we can connect two of these resistors in series to get a total resistance of 40kΩ. Then, we can connect this combination in parallel with another 20kΩ resistor to get a total resistance of 30kΩ.

So the equivalent circuit would look like this:
20kΩ - 20kΩ - 20kΩ --- 40kΩ ---20kΩ