Physics - Electrostatics Question with Solution | TestHub

The van de Graaff generator is an electrostatic machine used to generate very high voltages. It operates on the following principles:

1. Corona discharge (action of sharp points), which is used to spray charge onto the moving belt.

2. The property that any charge given to a hollow conductor resides entirely on its outer surface, allowing the accumulation of large amounts of charge.

3. As charge is continuously supplied to the isolated metallic shell, its potential keeps increasing until breakdown occurs.

The application of mutually perpendicular electric and magnetic fields is the working principle of a cyclotron, not a van de Graaff generator.

Answer: the application of electric field and magnetic field which are perpendicular to each other.