A E U Font Paragraph Styles Dictate Sensitivity Editor Lab 8: Ohm's Law and Simple Electric Circuits Part 1: Ohm's Law: Electric Pressure (Voltage), Current and Resistance Purpose: The purpose of this activity is to determine the mathematical relationship among battery voltage (AV), current (I), and resistance (R) for a simple circuit. Getting Ready: Navigate to the DC Circuit Builder Interactive at The Physics Classroom. Plain text link: https://www.physicsclassroom.com/Physics- Interactives/Electric-Circuits. Resize the Interactive using the small handles in the bottom right corner or go full-screen by tapping the icon in the upper left corner. Observe the tools in the Toolbox region below the red Workspace area. Experiment with these tools to create a circuit. Simply select a circuit component and tap on the workspace to add it to the circuit; add wires, resistors, bulbs and ammeters as desired. Tap on a component in the workspace to remove it. Build, Measure, and Analyze 1. Clear your Workspace by clicking on all components; only the battery should remain. Using the tools in the Toolbox area, create a simple circuit consisting of a battery, a bulb, an ammeter (for measuring current in amps), and wires. 2. To change a battery voltage or a resistor value, select the second icon (Modify icon) at the bottom of the screen; a magnifying glass appears above the circuit element. Adjust the voltage or the resistance using the up/down arrows next to the digital meter. Use the arrows to lower the battery voltage to 6.0 Volts. 3. The ammeter reads the current (I) in amps. Record the ammeter reading in Table 1. 4. Repeat steps 2 and 3 until Table 1 is complete. Use the Modify icon to increase the voltage of the battery (AV) for each of these trials. 5. Tap the Modify icon and then tap on the light bulb. The resistance (R) of the light bulb is displayed. Record this resistance value above Table 1. Then double the value of the light bulb's resistance and repeat the experiment for Table 2. Complete Table 3 with a resistance value that is three times as