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When cathode rays are deflected onto the electrode of an electrometer, the instrument becomes?

When cathode rays are deflected onto the electrode of an electrometer, the instrument becomes?

  • A.
    Bipolar
  • B.
    Negatively charged
  • C.
    Positively charged
  • D.
    Neutral
Correct Answer: Option B
Explanation

When these cathode rays are deflected onto an electrode of an electrometer, the instrument measured a negative charge. The rays tested also were deflected by application of an electric field.

There is an explanation video available below.

Explanation Video