Physics Experiments / Virtual Breadboard

Virtual Breadboard Experiment

Build series and parallel resistor circuits and calculate equivalent resistance.

Physics Class 9-10 Electricity Advanced
Prelab Brief
To study series and parallel combinations of resistors and calculate the equivalent resistance using a virtual breadboard.
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Theory

Build series and parallel resistor circuits and calculate equivalent resistance. To study series and parallel combinations of resistors and calculate the equivalent resistance using a virtual breadboard.

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Formula

Req = Rโ‚ + Rโ‚‚ + Rโ‚ƒ

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Aim

To study series and parallel combinations of resistors and calculate the equivalent resistance using a virtual breadboard.

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Apparatus

  • Breadboard
  • Resistors (various values)
  • Battery / DC power supply
  • Ammeter and Voltmeter
  • Connecting wires
  • Multimeter
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Procedure

  1. Select resistors from the component tray.
  2. Add resistors to the series rail โ€” they are connected end-to-end.
  3. Add resistors to the parallel rail โ€” they are connected across the same two points.
  4. Read the equivalent resistance from the multimeter display.
  5. Observe how current distributes in series vs parallel.
  6. Try the challenge: create 15ฮฉ from three 10ฮฉ resistors.
Pre-Lab Questions
What is the main aim of the Virtual Breadboard Experiment?
Which principle is demonstrated in the Virtual Breadboard Experiment?
What apparatus is required for this experiment?
Why is Breadboard used in this experiment?
What formula or relationship is verified in this experiment?
What precaution should be followed while performing this experiment?
What conclusion can be drawn from the Virtual Breadboard Experiment?

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