To investigate the variation of current ( I ) with pd ( V ) for copper sulfate solution with copper electrodes.

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.

Procedure:

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.

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