The inward and outward electric flux from a closed surface is respectively 8 x 10^3units and 4 x 10^3 units, then the net charge inside the closed surface is:
Correct answer: B. B:-4 x 10^3 ε0
- A. A:+4 x 10^3 ε0
- B. B:-4 x 10^3 ε0
- C. C:0 ε0
- D. D:+8 x 10^3 ε0
Explanation
Flux2-flux1= q/epsilon notQ= (4×103 - 8×103) epsilon
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
To determine the resistance of a voltmeter by discharging a capacitor through it, the instantaneous voltage is then given by the relation:
The number of electrons in one coulomb of charge are:
In a uniform electric field, which statement is correct?
There are two charges +2𝜇𝐶 and -3𝜇𝐶. The ratio of the force acting on them will be:
If there are "n" capacitors each of capacity "c" connected in parallel to "V" volts source then the energy stored is equal to:
What happens when a charge is placed on a soap bubble?