What is the maximum energy that can be stored in a capacitor?
Correct answer: C. Depends on the maximum electric field
- A. Depends on the maximum area of the capacitor
- B. Depends on the maximum resistance offered
- C. Depends on the maximum electric field
- D. Depends on the maximum current passing through the capacitor
Explanation
The maximum energy that can be desirably stored in a capacitor depends on the maximum electric field that the dielectric can withstand without break down. Therefore, capacitor of the same type have about the same maximum energy density, i.e. joules of energy per cubic meter.
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 point charges 0.4nC is located at (2,3,3). Find the potential differences between (2,3,3) m and (-2,3,3)m due to the charge:
A point charges 2nC is located at orgin . What is the potential at (1, 0, 0)?
A point charge Q is placed at a distance d from the centre of an uncharged conducting sphere of radius R. The potential of the sphere is (d > R):
What is the voltage across the 2F capacitor?
What is the initial current while charging a capacitor?
The force between two point charges placed in air is F. If air is replaced by a medium of relatives permitivityƹ , the force is reduced to