A laboratory technician is investigating the electrical characteristics of a newly synthesized thin-film alloy specimen to determine if it behaves as an ohmic resistor.
Draw a circuit diagram of a suitable experimental setup that would allow the technician to obtain the necessary measurements to determine how the current through the specimen varies with the potential difference across it.
Describe a procedure that the technician should follow to collect reliable data and analyse the relationship between current and potential difference for this specimen.
