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Friday, 9 October

JEE Main 2023 · PhysicsMultiple choiceDiagram basedEasyData or graph

JEE Main 6 April 2023, Shift 1, Physics Q42

Question 42 of 90 in this shift, Physics question 12 of 30, Section A.

For a uniformly charged thin spherical shell, the electric potential (V) radially away from the centre (O) of shell can be graphically represented as -

The figure, in words

Circle (shell) with centre O, radius R drawn from O to point A on the shell. Options are V vs r graphs with dashed vertical line at r = R.
  1. (1)[figure: graph of V vs r, constant (flat) for r < R, then straight line decreasing for r > R]
  2. (2)[figure: graph of V vs r, constant (flat) for r < R, then decaying curve for r > R]Official answer
  3. (3)[figure: graph of V vs r, straight line rising from origin up to r = R, then decaying curve for r > R]
  4. (4)[figure: graph of V vs r, convex curve rising from origin up to a peak at r = R, then straight line decreasing for r > R]

Official answer

Option 2

NTA final key.

Chapter
Electrostatic Potential and Capacitance
Topic
Electric Potential
Idea tested
V-r Graphs for Spherical Geometries

Same topic in other shifts

All Electric Potential questions
  1. 6 Apr 2026, Shift 2 · Q37The electric potential as a function of x,yx, y is given by V=5(x2−y2)V=5(x^2-y^2) V. The electric field at a point (2, 3) m is __________ V/m.EasySingle correct
  2. 6 Apr 2026, Shift 2 · Q40A sphere of capacitance 100 pF is charged to a potential of 100 V. Another identical uncharged metal sphere is brought in contact with the…MediumSingle correct
  3. 2 Apr 2025, Shift 2 · Q42Two large plane parallel conducting plates are kept 10 cm apart as shown in figure. The potential difference between them is V. The…MediumDiagram basedHas a figure
  4. 3 Apr 2025, Shift 1 · Q39The electrostatic potential on the surface of uniformly charged spherical shell of radius R = 10 cm is 120 V. The potential at the centre…EasySingle correct
  5. 7 Apr 2025, Shift 1 · Q38Two charges q1q_1 and q2q_2 are separated by a distance of 30 cm. A third charge q3q_3 initially at 'C' as shown in the figure, is moved…MediumDiagram basedHas a figure
  6. 8 Apr 2025, Shift 2 · Q35Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A : Work done in moving a…EasyAssertion–reason

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. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.