You have the owing material :
An ammeter (0-1A), a voltmeter (0-3V), a resistor of 20 , a key, a rheostat, a battery of 3 V and seven connecting wires.
Using this material draw a labelled circuit diagram to study the dependence of potential difference (V) across a resistor on the current (I) passing through it.
Given-
Ammeter of Range = (0-1) A
Voltmeter of Range = (0-3) V
Battery of voltage = 3 V
Rheostat