If i have three resistors in parallel and series, then the first resistor (series) and the second resistor (parallel) should have the same average of the total voltage?

is this true? i think it should

In a series circuit, the total voltage across the resistors is divided among them based on their individual resistance values. Each resistor experiences the same current flow but may have different voltage drops. Therefore, in a series circuit, the voltage across the first resistor will not be the same as the voltage across the second resistor.

In a parallel circuit, each resistor has the same voltage across it. The total current flowing through the circuit is divided among the resistors based on their individual resistance values. Therefore, in a parallel circuit, the voltage across the first resistor will be the same as the voltage across the second resistor.

To calculate the average voltage across a resistor or any component in a circuit, you need to know the individual voltage drops or potential differences across each component. This information can be obtained by measuring the voltage across each resistor using a voltmeter.

In summary, in a series circuit, the voltage across each resistor will be different, while in a parallel circuit, the voltage across each resistor will be the same. To find the average voltage, you would need to measure the individual voltage drops across each resistor and calculate the mean value.