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Friday, 9 October

NEET UG 2020 · Physics · Question 173

NEET 2020 Physics, question 173

Question 173 of the NEET 2020 paper (code E1) is a Physics question from Current Electricity. Its idea, Charge Carrier Mobility, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 2.

Updated 2026-10-08

Q173 · Physics

A charged particle having drift velocity of 7.5×10−47.5\times10^{-4} m s−1^{-1} in an electric field of 3×10−103\times10^{-10} V m−1^{-1}, has a mobility in m2^2 V−1^{-1} s−1^{-1} of :

  1. 12.25×10152.25\times10^{15}
  2. 22.5×1062.5\times10^{6}Official answer
  3. 32.5×10−62.5\times10^{-6}
  4. 42.25×10−152.25\times10^{-15}

Official answer: option 2 · NTA final answer key

Same idea

The only question on Charge Carrier Mobility

No other NEET paper from 2017–2026 tested this exact idea.

Charge Carrier Mobility: 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.

Chapter analysisStudy this chapterPractise this chapter

Current Electricity: questions per paper

0362’173’183’195’204’214’225’234’243’251’26