When a voltage source is connected to a voltameter containing copper electrodes in a copper sulfate solution a current flows
through the solution. In this experiment we investigate how the current flowing through the solution varies with different voltages
applied across it.

- Note that current is 0 when voltage is 0. Record voltage and current values in a table.
- Click on the slider to increase the voltage from the potentiometer.
- Record the voltage and current readings from the voltmeter and ammeter.
- Repeat steps 2 and 3 until you have at least six sets of readings.

**Data analysis:**

- Draw a graph of current (y-axis) against voltage to determine the relationship between them.

Note: Start both axes at zero. Draw a "best fit" straight line. Be sure you understand the significance of the graph.