NEET UG 2018 · Physics · Question 7
NEET 2018 Physics, question 7
Question 7 of the NEET 2018 paper (code AA) is a Physics question from Current Electricity. Its idea, Short-Circuiting a Cell, was asked only this once in NEET 2017–2026. The CBSE official answer key gives option 3.
Updated 2026-10-08
Q7 · Physics
A battery consists of a variable number 'n' of identical cells (having internal resistance 'r' each) which are connected in series. The terminals of the battery are short-circuited and the current I is measured. Which of the graphs shows the correct relationship between I and n ?
The figure, described in words
Four I vs n graphs as options: (1) rising saturating curve, (2) straight line through origin, (3) horizontal line, (4) rising concave-up curve.
- 1[graph: I vs n, concave-down curve rising from origin and flattening]
- 2[graph: I vs n, straight line through origin]
- 3[graph: I vs n, horizontal line (I constant)]Official answer
- 4[graph: I vs n, concave-up curve rising from origin]
Official answer: option 3 · CBSE official answer key
Same idea
The only question on Short-Circuiting a Cell
No other NEET paper from 2017–2026 tested this exact idea.
Short-Circuiting a Cell: every question and how it was framed
The chapter
Current Electricity in ten years of NEET
34 questions from 2017–2026, asked in 10 of 10 papers, about 3.2 a paper. Ohm's Law and Resistance alone had 28.