Physics Practicals Class 10

Factors on Which the Resistance of the Conductor Depends

  • Teach science experiments in a gamified way
  • Boost conceptual clarity and knowledge retention
  • Aligned with National Education Policy 2020
  • Helpful in getting NAAC accreditation
  • CBSE, ICSE, and state boards aligned curricula
  • Engaging simulations with easy-to-teach instructions

About Simulation

  • With this simulation, you will be able to adjust various parameters affecting the resistance of a conductor and observe the corresponding changes in resistance. This means you can explore different scenarios and understand how resistance behaves under different conditions.
  • You can interact with sliders or input boxes to modify parameters, and the simulation will provide real-time updates of the resistance value based on your inputs.
  • By using this simulation, you will understand the concept of electrical resistance and its significance in circuits.
  • You can explore how the length and thickness of a conductor affect its resistance. Through the simulation, you will be able to visualize and comprehend the relationship between these parameters and resistance.

Physics Practical Class

  • Using this simulation, you can learn to measure current using an ammeter in an electrical circuit. This hands-on experience will equip you with practical skills in electrical measurement.

Simulation Details

Duration – 30 Minutes
Easily Accessible
Languages – Odia & English
Platforms – Android & Windows


On applying Ohm’s law, it is observed that the resistance of a resistor depends on its length, its area of cross-section, and the nature of its material. Precise measurements have shown that the resistance (R) of a uniform metallic conductor is directly proportional to its length (l) and inversely proportional to the area of cross-section (A). That is, R ∝ l and

Physics Practical Class

Here, ρ is a constant of proportionality and is called the electrical resistivity of the material of the conductor. The SI unit of resistivity is ohm meter (Ω m).

In this experiment, we study these factors in an electric circuit by employing different resistors (wires) of different lengths and areas of the cross-section.

Using Ohm’s law, the resistance of a conductor in an electric circuit can be determined by measuring the current through it and the potential difference across its ends. An ammeter (connected in series with the resistor) measures the current through it, and a voltmeter (connected parallelly with the resistor) measures the potential difference across its two ends.

Requirements for this Science Experiment

  • Battery
  • Plug key
  • Wires
  • Voltmeter
  • Ammeter
  • Meter scale

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