A series RC circuit contains two resistors and two capacitors. The resistors are 49 Ohms and 56 Ohms. The capacitors have capacitive reactances of 80 Ohms and 40 Ohms. When calculating the circuit values, the total resistance used is

To calculate the total resistance in a series RC circuit, you need to add up the resistance values of all the components in the circuit.

In this case, you have two resistors with resistance values of 49 Ohms and 56 Ohms. To find the total resistance, add these values together:

Total resistance = 49 Ohms + 56 Ohms = 105 Ohms

Therefore, the total resistance used in the series RC circuit is 105 Ohms.