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Experiment DC Circuit (AP)

# Experiment DC Circuit (AP) - AP Physics Experiment DC...

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AP Physics Experiment – DC Circuits Purpose To determine current and voltage through components of series and parallel DC circuits. To analyze the components of a complex circuit Procedures Part 1 1. Assemble the series circuit following the schematic. The switch should be “off” when inserting the batteries into the holders. Record the combined rated voltage ( E 1 ) of the batteries. 2. Insert the batteries into the two holders and turn the switch to the “on” position. 3. Measure and record the voltage drop (volts) ( V 1 ) across the first light bulb ( L 1 ) by connecting the probes from the voltmeter across the terminals of the light bulb. 4. Unscrew the first light bulb. Record observations qualitatively. Insert the light bulb. 5. Measure and record the voltage drop (volts) ( V 2 ) across the second light bulb ( L 2 ) by connecting the probes from the voltmeter across the terminals of the light bulb. 6. Measure and record the current (amps) (I) through the circuit by disconnecting the wire connecting the battery holders and connecting the probes in series with the circuit. Remove the batteries and disassemble the circuit. 7. Calculate the resistance (ohms) of the first bulb ( R 1 ) by dividing V 1 by I and the second bulb ( R 2 ) by dividing V 2 by I .

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