2018 source guide · Physics

NEET 2018 Physics Current Electricity 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 138 verified questions →Check official NTA archive ↗

What to master

circuits, cells, resistance combinations, metre bridges and electrical power.

Original practice preview

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

Example 1 · difficulty 2/5

The electric field in a metal is doubled while the electron relaxation time and all other relevant quantities remain unchanged. What happens to the electron drift velocity?

A. Its magnitude becomes half and its direction reverses.
B. Its magnitude remains unchanged.
C. Its magnitude doubles, while it remains opposite to the electric field.
D. Its magnitude becomes four times and it becomes parallel to the electric field.

Example 2 · difficulty 1/5

In the classical description of conduction in a metal, relaxation time is best described as the

A. time taken by an electron to cross the entire wire.
B. time for the electric field to become zero after connecting a cell.
C. period of circular motion of an electron inside the metal.
D. average time between two successive collisions of a conduction electron.

Example 3 · difficulty 2/5

A metal has free-electron number density 8.0 × 10²⁸ m⁻³. A wire of this metal has cross-sectional area 1.0 × 10⁻⁶ m², and the electron drift-speed magnitude is 2.0 × 10⁻⁴ m s⁻¹. Taking e = 1.6 × 10⁻¹⁹ C, find the current.

A. 2.56 A
B. 0.256 A
C. 25.6 A
D. 256 A

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

Current Electricity →

Frequently asked questions

Are these official NEET 2018 Physics Current Electricity 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.