Consider a capacitor that has a vacuum in the space between the conductors. If we double the amount of charge on each conductor, what happens to the capacitance?
Correct answer: C. It remains same
- A. It increases
- B. It decreases
- C. It remains same
- D. It depends on the size or shape of the conductors
Explanation
Option C is correct because to double the charge; you will need to increase the area of plates so that it holds more charge.Thus charge does not decide capacitance. Capacitance decides how much charge a capacitor can hold.You can not double the capacitance by giving a double charge. This extra charge will get wasted.
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Electrostatics describes forces between charges through Coulomb's law, electric fields and field intensity, then uses electric potential to measure energy per unit charge. Capacitors store charge and electrical energy, with capacitance depending on geometry and dielectric material, not simply on the amount of charge present.
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