Learn

Friday, 9 October

JEE Main 2026 · PhysicsNumerical answerNumerical valueMediumMulti-step

JEE Main 5 April 2026, Shift 1, Physics Q50

Question 50 of 75 in this shift, Physics question 25 of 25, Section B.

In the given circuit below inductance values of L1L_1, L2L_2 and L3L_3 are same. The magnetic energy stored in the entire circuit is (UtU_t) and that stored in the L2L_2 inductor is (UlU_l). Ut/UlU_t / U_l is ________. (Ignore the mutual inductance if any)

The figure, in words

L1 in series with a parallel combination of L2 and L3; current flows in from the left through L1, splits through L2 and L3, and exits on the right.

Official answer

6

NTA final key.

Chapter
Electromagnetic Induction
Topic
Inductance
Idea tested
Energy Stored in Inductors

Same topic in other shifts

All Inductance questions
  1. 2 Apr 2026, Shift 2 · Q43A circular current loop of radius R is placed inside square loop of side length L (L >> R) such that they are co-planar and their centers…HardSingle correct
  2. 6 Apr 2026, Shift 1 · Q43An inductor of inductance 10 mH having resistance of 100 Ω\Omega is connected to battery of E.M.F. 1.0 V through a switch as shown in the…MediumSingle correctHas a figure
  3. 8 Apr 2026, Shift 2 · Q40A 30 cm long solenoid has 10 turns per cm and area of 5 cm2^2. The current through the solenoid coil varies from 2 A to 4 A in 3.14 s.…MediumSingle correct
  4. 2 Apr 2025, Shift 2 · Q43A solenoid having area AA and length ll is filled with a material having relative permeability 2. The magnetic energy stored in the…MediumSingle correct
  5. 6 Apr 2024, Shift 2 · Q44In a coil, the current changes from −2-2 A to +2+2 A in 0.2 s and induces an emf of 0.1 V. The self inductance of the coil is :EasySingle correct
  6. 31 Jan 2024, Shift 1 · Q58A small square loop of wire of side ll is placed inside a large square loop of wire of side LL (L=l2L=l^2). The loops are coplanar and…HardNumerical value

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.