An electron with a kinetic energy of 100 eV enters the space between the plates of plane capacitor made of two dense metal grids at an angle of 30° with the plates of capacitor and leaves this space at an angle of 45° with the plates. What is the potential difference of the capacitor:
Correct answer: B. 50V
- A. 100V
- B. 50V
- C. 150V
- D. 200V
Explanation
The change in angles and kinetic energy corresponds to this potential difference.
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