✓ Board-verified
Physics · 2023 · 2 marks
CBSE 2023 · Region 4 · Set 2 · Q24
Use Gauss's law to obtain the expression for electric field due to a uniformly charged infinite plane thin sheet.
Use Gauss's law to obtain the expression for electric field due to a uniformly charged infinite plane thin sheet.
Marking-scheme solution
Diagram Expression for electric field due to uniform charged infinite plane sheet \(\displaystyle 1 \frac{1}{2}\)
Alternatively: Full credit will be for diagram given if a student draws cylindrical Gaussian surface. Derivation- Net flux through the Gaussian surface
\[\phi=2 E A
\] By Gauss's law \(\displaystyle \phi=\frac{q}{\epsilon_{0}}\)
All Electric Charges and Fields questions2023 question paperNCERT solutions: Electric Charges and FieldsPractice Electric Charges and Fields →
More from Electric Charges and Fields
- (i) Two point charges +q and -q are held at (a, 0) and ( -a, 0 ) in x-y plane. Obtain an expression for the net electric field due to the charges at…2025
- An electric dipole of dipole moment 1.0 × 10^-12 Cm lies along x -axis. An electric field of magnitude 2.0 × 10^4 NC^-1 is switched on at an instant…2025
- An electric dipole consists of two point charges q and -q separated by a distance 2a. Derive an expression for the electric field E due to this…2026
- Depict the orientation of an electric dipole in stable and unstable equilibrium in an external uniform electric field. Write the potential energy of…2023
- (i) Define electric flux and write its SI unit. (ii) Use Gauss' law to obtain the expression for the electric field due to a uniformly charged…2023
- Two small solid metal balls A and B of radii R and 2 R having charge densities 2 σ and 3 σ respectively are kept far apart. Find the charge densities…2025
- Define the term 'electric flux' and write its dimensions. A plane surface, in shape of a square of side 1 cm is placed in an electric field E=(100…2024
- Three small charged spheres X, Y and Z carrying charges +q,-q and +q respectively are placed equidistant from each other, as shown in the figure. The…2024
CBSE Class 12 Physics past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.