W s + Source Load Figure 1: Wattmeter Connections The wattmeter displays average power: P =V | cosB. Preparation 1. Prepare a schematic diagram which: has an adjustable ac voltage source (use a variac); has a load which consists of a rheostat (adjustable resistance) in parallel with a series combination of 2 Exel inductors (L=0.16H for each inductor); e uses meters to monitor load current (GW DMM), load voltage (Fluke DMM) and load power (Bench wattmeter). Prepare a table to record the following measurements and calculations during the lab. The variables marked with an asterisk (*) are those that you will measure in the lab (except for the predicted values column) and the rest of the variables need to be calculated