JAMB - Chemistry (2020 - No. 35)
When cathode rays are deflected onto the electrode of an electrometer, the instrument becomes?
Bipolar
Negatively charged
Positively charged
Neutral
הֶסבֵּר
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.