PHY 114DC Circuits: Electric PowerAbstractThis lab was conducted to look at the electric power dissipated in a load resistor in a circuit with a power source that has an unlimited internal resistance. This Experiment Kermani 1

studied how to deliver the maximum power from the power source to the device. The experiment will show how power can be maximized from a different load of resistors.Within this lab, we are seeking to become more familiar with the basic terms and symbols that are needed to build an electric circuit. This lab report will also explain the empirical relationship known as Ohm’s law and how it is relating to the introduction to electrical circuits. In this Lab the external load resistor was 80 ohm at the beginning and it is doubled in the second part of the experiment. The power generated by the power supply, the power generated with the maximum load resistor and efficiency of the power supply was measured for R0 at 80 ohm and 160 ohm. Power generated by the power supply for part one was 0.059W and for part two 0.0552W. The maximum load resistor measured fro part one was 0.055W and for part two was 0.0476W. The efficiency of the power supply was measured for the part one was 92.59%and part two was 86.21%.At the end percent error for the power generated by the and part 2 was 8.15% which was acceptable. ObjectiveThe objective of this lab was to define the concept of electrical resistance and determine the load resistance value (RL) when power had the most energy consumed in a DC circuit. This needs to be done to understand how load resistors are act in the DC circuit and how they are making system work more efficient. EquipmentDC power supply2 digital multimeters 2 decade resistance boxesConnecting electrical leadsProcedureIn Figure 1, power source with voltage V0=8V and internal resistance R0 are