Feb 3 rd PHET LAB: Ohm's Law and Visualizing resistance PhET MiniLab Introduction: When an electrical potential exists in a circuit, a current may flow. Current is V-IR the flow of current in electrons in a circuit. Resistance in the circuit slows the flow of the electrons, reducing the the circuit. We will use the mathematical form of Ohm's Law frequently when we investigate electric current and circuits later in this unit. Oh's Law Part 1 : Read all directions carefully: Do not calculate missing values for the data tales below, take your data from the simulation itself. You can find this simulation at http://phet.colorado.edu/en/simulation/ohms-law Procedure Part I: Ohm's Law: Electricity, Magnets, and Circuits -> Ohm's Law Run Now! mA is milliamps, and milliamps equals one Ampere. . Move the potential (volts) and resistance (ohms) sliders and observe the current (amps) As voltage increases, current As resistance increases, current Fill out the tables below and check your work in the simulation. ( 1/2 pt each ) . Remember, the simulation shows milliamps. You should show Amperes V = 8.0 V A 800 2 8.0 V 400 2 8.0 V 300 8.0 V 200 2 Collect the data to measure current by changing Voltage every time and record in the table below. 8.0 V A 800 2 2.0 V A 8005 6.0 V A 80092 4.0 V A 8009 For the following questions, make a claim (answer) and support it with evidence (reference to specific trials) and reasoning that explain why those specific trials support the claim. Use the data collected above to make claims and to answer the questions. 1. What effect does a doubling of the battery voltage (AV) have upon the current (1)? (Be sure to use claim-evidence-reasoning format.)