Final answer:
To compare an op-amp in inverting and non-inverting modes, we evaluate the voltage across resistors, the sum of voltages, and the individual and combined currents. Resistor values typically range in kiloohms, and systematic measurements allow for a thorough comparison of the op-amp's characteristics.
Step-by-step explanation:
To compare the characteristics of an operational amplifier (op-amp) in both inverting and non-inverting modes, we devise a series of tests and experiments. First, let's define a few basic components mentioned:
- Resistor: A device that opposes the flow of electric current, leading to a drop in voltage across the device.
- Coulomb: A unit of electric charge, equivalent to the charge transferred by a current of one ampere in one second.
- Voltmeter: An instrument used to measure electric potential difference between two points in an electric circuit.
Experiment Setup
For inverting and non-inverting modes, the following circuit diagrams are considered:
- Inverting op-amp configuration with feedback resistor Rf and input resistor Rin.
- Non-inverting op-amp configuration with feedback resistor Rf connected between the output and the positive input, and a resistor Rg connected from the positive input to the ground.
Regarding the component values, a common practice is to choose resistors in the kiloohm range (e.g., 10kΩ for Rf and 1kΩ for Rin) as a starting point.
Testing Procedures
- Measure the voltage across each resistor.
- Compare the sum of the voltages across all resistors in each circuit.
- Measure the current before and after each resistor, and before and after the parallel branches.
- Compare the currents through individual resistors and the sum of the currents through individual resistors with the current before the parallel branches.
- Compare the various voltage measurements across the parallel resistors.
This testing approach will yield vital information about the behavior of the op-amp in distinct configurations and under different loads.