Question

What happens when an electric field is applied to a stream of cathode rays? what conclusion can be drawn from this observation?

Answer 1

• The stream of cathode rays is deflected by the electric and magnetic fields. When the rays are passed between two electrically charged plates; these are deflected towards the positively charged plate.
• They discharge a positively charged gold leaf electroscope.
• It shows that cathode rays carry a negative charge.