Questions: 20) The Cathode Ray Tube Experiment confirmed the charge of the electron A. The positive end of a magnet deflected the electron beam away: B. The positive end of a magnet attracted the electron beam. C. The negative end of a magnet attracted the electron beam. D. The magnet had no effect on the electron beam.

20) The Cathode Ray Tube Experiment confirmed the charge of the electron A. The positive end of a magnet deflected the electron beam away: B. The positive end of a magnet attracted the electron beam. C. The negative end of a magnet attracted the electron beam. D. The magnet had no effect on the electron beam.

Transcript text: $\qquad$ 20) The Cathode Ray Tube Experiment confirmed the charge of the electron A. The positive end of a magnet deflected the electron beam away: B. The positive end of a magnet attracted the electron beam. C. The negative end of a magnet attracted the electron beam. D. The magnet had no effect on the electron beam.

Solution

Solution Steps

Step 1: Understanding the Cathode Ray Tube Experiment

The Cathode Ray Tube (CRT) Experiment, conducted by J.J. Thomson, demonstrated that cathode rays were composed of negatively charged particles, later identified as electrons. When a magnetic field is applied to the electron beam, the direction of deflection indicates the charge of the particles.

Step 2: Analyzing the Deflection of the Electron Beam

In the presence of a magnetic field, the behavior of the electron beam can be observed:

If the positive end of a magnet attracts the beam, it indicates that the beam is negatively charged.
If the positive end of a magnet repels the beam, it indicates that the beam is positively charged.
If the negative end of a magnet attracts the beam, it also indicates that the beam is positively charged.
If the magnet has no effect, it suggests that the beam is neutral.

Step 3: Identifying the Correct Option

Given that electrons are negatively charged, they will be attracted to the positive end of a magnet.