Question

which one of the following is the correct setup for studying the dependence of the current on the potential difference across a resistor and why..

Answer 1

Answer:

Choice C

Explanation:

For the set up to be correct the Ammeter should be in series with the resistor whereas the voltmeter should be in parallel with the resistor.

The Ammeter measures the current through the resistor whereas the voltmeter measures the potential difference.

We therefore look for an arrangement where the Ammeter is in series with the resistor and the voltmeter is in parallel with the resistor.

The correct arrangement is arrangement C.

The resistor is in parallel with the voltmeter and in series with the Ammeter.