Theory Question (Kirchhoff's Law)

[Bob_Builder]

Homework Statement

To ensure the source's in the circuit are supplying the correct voltage for the experiment, we measured the terminal voltage. Why do we have to measure terminal voltage after the connection is made

Homework Equations

The Attempt at a Solution

if we check the terminal voltage and its right than we are ensuring that all our measurements will have little or no error?

 

[willem2]

suppose the terminal voltage would be much lower than the rating of the source.
what could be the cause of that?

 

[tomcue]

I can confirm that measuring the terminal voltage after the connection is made is a crucial step in ensuring the accuracy of the experiment. This is because, according to Kirchhoff's Voltage Law, the sum of all voltages in a closed circuit must equal zero. By measuring the terminal voltage, we are essentially checking that the voltage supplied by the source is equal to the voltage used by the components in the circuit. This helps us to identify any potential errors or discrepancies in the circuit that may affect the accuracy of our measurements. Furthermore, measuring the terminal voltage after the connection is made also ensures that the circuit is properly set up and eliminates any potential errors from loose connections or faulty equipment. Therefore, it is essential to measure the terminal voltage to ensure the correct voltage is being supplied for the experiment and to minimize any potential errors in our measurements.