Question

The diagram below shows a cathode ray tube in which the arrow indicates a beam of charged particles approaching an electric field between the plates A and B. State the amount of charge on each particle.

• A. $1.6\times {10}^{-19}C$
• B. $-1.6\times {10}^{-19}C$
• C. 0
• D. $-1.16\times {10}^{-19}C$

Answer 1

The correct option is B $-1.6\times {10}^{-19}C$

The beam of charged particles in the cathode ray tube experiment is an electron beam, hence the charge on each particle equals $-1.6\times {10}^{-19}C$