Consider a capacitor has 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
When the charge given to the capacitor becomes double the capacitance of the capacitor remains the same .The capacitance depends only on the geometrical configuration of the conductors.The capacitance of a capacitor is affected by the area of the plates, the distance between the plates, and the ability of the dielectric to support electrostatic forces.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Electrostatics
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.
Practise Electrostatics
831 free Electrostatics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Electrostatics questions
A cable 4 km long and of total resistance 1 Ohm carries electric current from a generator producing 100kW at 10,000 Volts. The current in amperes in the cable is:
When a charge experience a force, there will be a _ field developed.
Which two or more of the following actions would increase the energy stored in a parallel plate capacitor when a constant potential difference is applied across the plates:
Coulomb's law is true for:
1/C_eq = 1/C_1 + 1/C_2 + 1/C_3 + ... + 1/C_n
The force between two charges Q and q, separated by a distance d is F. What will be the force between them when distance between them is d/2?