The MOD‑01 setup is a precision experimental apparatus designed to perform Millikan’s Oil Drop Experiment—a landmark experiment that determines the charge of an electron by observing the motion of tiny oil droplets under the influence of an electric field.

This apparatus includes a chamber with condenser plates, an atomizer to introduce oil droplets, an illuminated viewing microscope, and a high-voltage power supply with fine control. By adjusting the voltage, students can suspend individual droplets and use Stokes’ law to calculate the electronic charge, offering a deep understanding of quantization of electric charge.

The experiment is suitable for undergraduate and postgraduate physics labs, providing a fundamental introduction to modern physics and experimental precision.

  Key Features

• High-quality observation chamber with viewing window and illumination

• Micrometer eyepiece with reticle for droplet measurement

• Adjustable DC voltage source (typically 0–500V or more)

• Complete setup includes oil atomizer, droplet chamber, and power unit

• Enables calculation of electronic charge (e) using Stokes’ law

• Robust and durable design for repeatable and accurate results

• Complies with educational physics lab standards

  Applications

• Determining the charge of an electron

• Understanding the quantization of charge

• Study of electrostatics and viscous drag forces

• Ideal for physics labs in colleges and universities

• Demonstration of historical breakthroughs in atomic theory