1.3.3resistance

The document discusses calculating the total resistance of multiple resistors connected in series. It shows that the reciprocal of the total resistance (1/RT) is equal to the sum of the reciprocals of the individual resistances. As an example, it calculates the total resistance of a circuit with three resistors of 6 ohms, 9 ohms, and 18 ohms by finding the sum of their reciprocals. It then confirms that the calculated total resistance of 3 ohms is smaller than each of the individual resistances.