2018 source guide · Physics

NEET 2018 Physics Electrostatics Questions

Use this page to connect the official 2018 paper with current Physics practice. NeetVellum does not claim a chapter appeared in that paper until the official question and final key have been mapped.

Practice 256 verified questions →Check official NTA archive ↗

What to master

fields, Gauss law, potential, capacitance and stored energy.

Original practice preview

These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.

Example 1 · difficulty 4/5

A small sphere of mass 2 g carrying a charge q is suspended by a light silk thread inside a uniform horizontal electric field of 5 × 10⁴ N C⁻¹. In equilibrium, the thread makes an angle of 45° with the vertical. Taking g = 10 m s⁻², the value of q is:

A. 2.8 × 10⁻⁷ C
B. 4.0 × 10⁻⁶ C
C. 4.0 × 10⁻⁷ C
D. 8.0 × 10⁻⁷ C

Example 2 · difficulty 1/5

A tiny metal sphere carrying a charge of 2 μC is shifted slowly from a point P, where the electrostatic potential is 40 V, to a point Q, where the potential is 140 V. The work done on the charge by the external agent is:

A. 0.2 J
B. 2×10⁻⁶ J
C. 2×10⁻⁴ J
D. 2×10⁻² J

Example 3 · difficulty 1/5

The capacitance of an isolated conducting sphere of radius R kept in vacuum is:

A. 4πε₀R
B. 4πε₀/R
C. ε₀R/4
D. R/4πε₀

The evidence-first practice loop

1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
2. Attempt closed-bookExpose the concept or execution gap before rereading.
3. Repair and returnClassify the miss and re-practice after a delay.

Canonical chapter practice

Electric Charges and Fields →Electrostatic Potential and Capacitance →

Frequently asked questions

Are these official NEET 2018 Physics Electrostatics PYQs?

No. The previews are original NeetVellum practice questions. A historical item receives a PYQ label only after its official paper and authoritative final answer key are attached. Use the official archive for the source paper.

How should I use the NEET 2018 paper?

Solve the official paper under its original timing, verify against the final key, classify every miss, and then use the linked current-syllabus practice bank to repair the exposed concept.