Learn

Friday, 9 October

JEE Main 2026 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 8 April 2026, Shift 2, Physics Q41

Question 41 of 75 in this shift, Physics question 16 of 25, Section A.

Two point charges q1=3 μq_1 = 3\,\muC and q2=−4 μq_2 = -4\,\muC are placed at points (2i^+3j^+3k^)\left(2\hat{i} + 3\hat{j} + 3\hat{k}\right) and (i^+j^+k^)\left(\hat{i} + \hat{j} + \hat{k}\right) respectively. Force on charge q2q_2 is ________ N. (Take 14πϵ0=9×109 SI Units)\left(\text{Take } \frac{1}{4\pi\epsilon_0} = 9 \times 10^9 \text{ SI Units}\right)
  1. (1)(12i^+24j^+24k^)×10−3\left(12\hat{i} + 24\hat{j} + 24\hat{k}\right) \times 10^{-3}
  2. (2)(4i^+8j^+8k^)×10−3\left(4\hat{i} + 8\hat{j} + 8\hat{k}\right) \times 10^{-3}Official answer
  3. (3)(3i^+6j^+6k^)×10−3\left(3\hat{i} + 6\hat{j} + 6\hat{k}\right) \times 10^{-3}
  4. (4)(−4i^−8j^−8k^)×10−3\left(-4\hat{i} - 8\hat{j} - 8\hat{k}\right) \times 10^{-3}

Official answer

Option 2

NTA final key.

Chapter
Electric Charges and Fields
Topic
Coulomb's Law
Idea tested
Vector Form of Coulomb Law

Same topic in other shifts

All Coulomb's Law questions
  1. 4 Apr 2026, Shift 2 · Q43In Rutherford's alpha-particle scattering experiment, only a few alpha particles rebound back because A. The size of gold nucleus is very…MediumOther
  2. 2 Apr 2025, Shift 2 · Q35If μ0\mu_0 and ϵ0\epsilon_0 are the permeability and permittivity of free space, respectively, then the dimension of…EasySingle correct
  3. 6 Apr 2024, Shift 2 · Q42Two identical conducting spheres PP and SS with charge QQ on each, repel each other with a force 16 N. A third identical uncharged…MediumSingle correct
  4. 8 Apr 2024, Shift 1 · Q58In an alpha particle scattering experiment distance of closest approach for the α\alpha particle is 4.5×10−144.5\times10^{-14} m. If target…MediumNumerical value
  5. 30 Jan 2024, Shift 2 · Q55Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle of 37∘37^\circ with each other. When…HardNumerical value
  6. 31 Jan 2024, Shift 2 · Q40Force between two point charges q1q_1 and q2q_2 placed in vacuum at 'r' cm apart is FF. Force between them when placed in a medium having…EasySingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.