The electric field between the oppositely charged plates of surface charge density σ is σ/ ϵ0 . If one of the plates is removed, then the electric field becomes
Correct answer: C. σ/2εo
- A. zero
- B. 2σ/εο
- C. σ/2εo
- D. σ/4εο
Explanation
When one of the oppositely charged plates is removed, the electric field between them no longer exists. Therefore, the field becomes half of what it was before removal.Incorrect options: (a), (b), (d) These options do not accurately represent the change in the electric field when one of the plates is removed.
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
Uniform electric field exists
Capacitance with air is 10 F. If a dielectric of εr =100 is inserted, then the new capacitance is
Two lines of force
A large isolated metal sphere of radius r carries a fixed charge. A small charge is placed at a distance d from its surface. It experiences a force which is
If the electric intensity E is along the X-axis, then the equipotential surfaces are parallel to
A one microfarad capacitor of a TV is subjected to a 4000V Potential difference in the energy stored in a capacitor: