Question

how can three resistors of resistance 2 ohm 3 ohm and 6 ohm be connected to give a total resistance of 9 ohm​

Answer 1

Explanation:

The arrangement of three resistors of 2,3Ω and 6Ω which gives a total resistance of 4Ω can now be represented as follows: Thus, we can obtain a total resistance of 4Ω by connecting parallel combination of 3Ω and 6Ω resistors in series with 2Ω resistor.