In TASK 7, you should have noticed that the voltage drop across each of the different resistances is different; this is expected, because the voltage across each resistor is given by Ohm's Law, V = IR, meaning that different resistors will have different voltage drops across them even if the current running through them is the same. In effect, the voltage provided by the source is being 'divided' by the network of resistors that have been placed in series. One can, therefore, arbitrarily reduce the output voltage provided the correct values of resistance. A device that uses this principle is called a voltage divider. Figure 8 Fig. 8: Voltage divider. The output voltage is the voltage across R2. a) Build the voltage divider, as shown in Fig. 8, using an R1 value of 50 k and an R2 value of 100 k. Measure the current through R2, and the voltage across R2. Next, you should try connecting a resistor R3 in parallel with R2. R3 acts as a load that draws power from the voltage divider. An ideal power supply would maintain a constant output voltage regardless of the load resistance. To rest whether this is true of your voltage