Farad is defined as?
Correct answer: B. Coulomb / volt
- A. Newton/volt
- B. Coulomb / volt
- C. Coulomb/joule
- D. Coulomb/newton
Explanation
A farad (F) is the standard unit of capacitance (C) in the International System of Units (SI). It indicates the ability of a substance to hold an electric charge. The value of most electrical capacitors is expressed in farads, microfarads (µF) or nanofarads (nF).The SI unit of electrical capacitance, equal to the capacitance of a capacitor in which one coulomb of charge causes a potential difference of one volt. Farad = Coulomb / volt
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
You have three capacitors, each of 2 µC. In which of the following combinations of the three capacitors, the resultant capacitance is 3µC?
The unit of electric field strength is?
Electric flux on a surface enclosing a charge depends upon:
The capacitance of a parallel plate capacitor can be written as:
A test charge of 23 μC is at a point P where an external electric field is directed to the left and has a magnitude of 3.1 x 10^6 N/C. If the test charge is replaced with another test charge of 13 μC, what happens to the external electric field at P?
If the distance between two point charges is halved, the force between them would be _.