What is the area of the plates of a $$2~\text{F}$$ parallel plate capacitor, given that the separation between the plates is $$0.5~\text{cm}$$?
1. $$1100~\text{km}^2$$
2. $$1130~\text{km}^2$$
3. $$1110~\text{km}^2$$
4. $$1105~\text{km}^2$$

Subtopic:  Capacitance |
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A parallel plate air capacitor is charged to potential difference V. After disconnecting the battery, the distance between the plates of the capacitor is increased using an insulating handle. As a result the potential difference between the plates:

1. decreases.

2. increases.

3. becomes zero.

4. does not change.

Subtopic:  Capacitance |
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In the given figure if , each plate of the capacitor has a surface area of  and the plates are  apart, then the number of excess electrons on the negative plate is:

1. $5.15×{10}^{9}$

2. $2.21×{10}^{10}$

3. $3.33×{10}^{9}$

4. $2.21×{10}^{9}$

Subtopic:  Capacitance |
65%
From NCERT