Pulley Differential is a sturdy physics laboratory apparatus designed to demonstrate the working principle of differential pulley systems, compound pulleys, and mechanical advantage. It helps students understand how pulley combinations reduce effort while lifting loads.

The apparatus consists of a durable metal frame fitted with a four-step metal pulley having diameters of approximately 20 mm, 30 mm, 40 mm, and 60 mm. The pulley assembly is mounted on a strong rod to ensure smooth operation during experiments involving force transmission and load lifting.

Its robust construction makes it suitable for regular use in schools, colleges, universities, and educational physics laboratories for studying simple machines and pulley mechanisms.

Experimental Objectives

To demonstrate the working of a differential pulley system.
To study mechanical advantage using stepped pulley arrangements.
To understand force transmission in compound pulley systems.

To compare effort required for lifting loads using different pulley diameters.

To demonstrate the application of simple machines in reducing effort.