Question

Which one of the following is the correct set-up for studying the
dependence of the current on the potential difference across a resistor
and why
​

Answer 1

A is correct answer of your          question

Answer 2

Answer:

The correct option is C.

Explanation:

According to figure,

C is the correct set-up for studying the dependence of the current on the potential difference across a resistor.

We know that ,

The voltmeter is connected  in the parallel with the resistance and the ammeter is  connected in the series with the battery in the circuit.

Hence, The correct option is C.