10 Release the pushbutton switch Three Resistors in Series 11 Change the

10 release the pushbutton switch three resistors in

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10. Release the pushbutton switch. Three Resistors in Series
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11. Change the circuit to add a 1000-Ω resistor (brown, black, red) in series. Connect another 100-Ω resistor into the spring clips along the bottom part of the AC/DC Electronics Laboratory board as shown. 12. Move the wire lead from the pushbutton switch holder to the spring clip to the right of the 1000-Ω resistor. Return the Voltage Sensor leads to the terminals of the battery holders 13. Press and hold the pushbutton switch. 14. Record the values of voltage across the voltage source (D cells) and current through the circuit with three resistors in series. 15. Move the Voltage Sensor leads so one is on the clip at the left of the first resistor and the other is on the clip at the right of the third resistor and record the voltage across all three resistors. 16. Release the pushbutton switch. 1000-Ω resistor
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Procedure 2: Resistors in Parallel Measure voltage and current for resistors in parallel Two 100-Ω Resistors in Parallel 1. Return the AC/DC Electronics Laboratory board to the way it was at the beginning of Procedure 1. The measurements of voltage and current for one bulb in parallel are the same as the measurements for one bulb in series. 2. Change the circuit so the two 100- Ω resistors are connected to the voltage source in parallel. Turn the first 100-Ω resistor bulb so it is ‘parallel’ to the battery holders and reconnect it to the pair of spring clips next to the battery holder as shown. 3. Connect the second 100-Ω resistor to a set of spring clips to the right of the first resistor as shown. Add a wire lead from the spring clip above the first resistor to the spring clip above the second resistor as shown. Add a second wire lead from the spring clip below the first resistor to the spring clip below below the second resistor. 4. Press and hold the pushbutton switch. 5. Record the values of voltage across the voltage source (D cells) and current through the circuit with two resistors in parallel. 6. Move the Voltage Sensor leads to the spring clips on either end of the second resistor and record the voltage across the second resistor as before. 7. Release the pushbutton switch.
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Three Resistors in Parallel 8. Change the circuit to add the 1000-Ω resistor in parallel to the other resistors. Add a wire lead from the spring clip above the second resistor to the spring clip above the 1000-Ω resistor. Add a second wire lead from the spring clip below the second resistor to the spring clip below the 1000-Ω resistor. 9. Press and hold the pushbutton switch. 10. Record the values of voltage across the voltage source (D cells) and current through the circuit with three resistors in parallel. 11. Move the Voltage Sensor leads to the spring clips at either end of the 1000-Ω resistor and record the voltage across the resistor as before. 12. Release the pushbutton switch. Click ‘Stop’ in DataStudio.
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Results & Calculations 1. Based on the voltage across the voltage source and the resistance values of the resistors in the circuit, use Ohm’s law (I=V/R) to calculate the theoretical current for each circuit.
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  • Spring '17
  • manish
  • Resistor, Electrical resistance, Series and parallel circuits, Electronics Laboratory, AC/DC Electronics Laboratory

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