Question

3 resistors of resistance R each are combined in various ways .which of the following cannot be obtained?

Answer 1

In a series resistor network, the total resistance is equal to the sum of individual resistances as same current passes through each resistor. ∴ R TOTAL = R 1 + R 2 + R 3. For example consider two resistors connected in series as shown below. The combination of two 3 Ω resistors in series is equivalent to having a single 6 Ω resistor. Whenever you have multiple resistors of the same value connected in series or parallel, the answer is very easy and straightforward. In case of series connection, just multiply the single value by the number of resistors