Two parallel metal plates carry opposite electrical charges each with ...
Increasing Q:
- The potential difference between the plates is directly proportional to the magnitude of the charges on the plates.
- Therefore, increasing the charge Q will increase the potential difference between the plates.
Increasing d:
- The potential difference between the plates is inversely proportional to the distance between them.
- Therefore, increasing the distance d will decrease the potential difference between the plates.
Increasing A:
- The potential difference between the plates is not directly affected by the area of the plates.
- Increasing the area A will not have any effect on the potential difference between the plates.
Reducing the potential difference between the plates:
- We want to reduce the potential difference between the plates.
- From the above analysis, we can see that increasing Q will increase the potential difference, so it is not the correct option.
- Increasing d will decrease the potential difference, so it is a possible option.
- Increasing A will not have any effect on the potential difference, so it is not the correct option.
- Based on the above analysis, the correct option is option 'C' - increasing d only.
In conclusion, increasing the distance between the plates (option II) will have the effect of reducing the potential difference between the plates. Increasing the magnitude of the charges on the plates (option I) will increase the potential difference, while increasing the area of the plates (option III) will not have any effect on the potential difference.