To find the specific resistance by using the potential divider: POTENTIAL DIVIDER: To measure resistance: • • • On the right-hand Digital Multimeter (DMM) rotate the switch to resistance measurement. Click and drag the clips on the wires attached to the right-hand DMM so that they snap to the wires either side of either or both resistors (make sure the power supply is turned off). Note the resistance value shown on the DMM screen. To change a resistor: • • • • Click the resistor you wish to change to move to the Selection screen. Click on the colour band you wish to change. Click on the palette colour you wish to select. Click on the resistor wire to return to the main screen. To measure voltage and current: • • • • Turn on the power supply (right hand side of screen) and turn the dial to set the voltage. To measure current through the resistor – turn the left-hand DMM dial to DC current. To measure the voltage across the resistor – turn the right-hand DMM dial to DC voltage. NOTE: the output voltage of the power supply is also shown on its display.