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Saturday, 31 October

JEE Main 2023 · PhysicsMultiple choiceTwo statementsMediumConceptual

JEE Main 13 April 2023, Shift 2, Physics Q44

Question 44 of 90 in this shift, Physics question 14 of 30, Section A.

Given below are two statements: Statement I : An AC circuit undergoes electrical resonance if it contains either a capacitor or an inductor. Statement II : An AC circuit containing a pure capacitor or a pure inductor consumes high power due to its non-zero power factor. In the light of above statements, choose the correct answer form the options given below:
  1. (1)Both Statement I and Statement II are true
  2. (2)Both Statement I and Statement II are falseOfficial answer
  3. (3)Statement I is true but statement II is false
  4. (4)Statement I is false but statement II is true

Official answer

Option 2

NTA final key.

Chapter
Alternating Current
Topic
Phasor Diagrams
Idea tested
Phase Relations in RLC

Same idea in other shifts

Asked 8× in all
  1. 4 Apr 2024, Shift 1 · Q43In an ac circuit, the instantaneous current is zero, when the instantaneous voltage is maximum. In this case, the source may be connected…MediumOther
  2. 4 Apr 2024, Shift 2 · Q44Match List I with List II LIST I | LIST II A. Purely capacitive circuit | I. [figure: phasor diagram, II along the vertical axis (up) and…MediumMatch the listHas a figure
  3. 6 Apr 2023, Shift 2 · Q47A capacitor of capacitance 150.0 μ\muF is connected to an alternating source of emf given by E=36sin⁡(120πt)E=36\sin(120\pi t) V. The maximum value of…EasySingle correct
  4. 28 Jul 2022, Shift 1 · Q44The equation of current in a purely inductive circuit is 5sin⁡(49πt−30∘)5\sin(49\pi t-30^\circ). If the inductance is 30 mH then the equation for the…MediumSingle correct
  5. 22 Jul 2021, Shift 2 · Q4In a circuit consisting of a capacitance and a generator with alternating emf Eg=Eg0sin⁡ωtE_g = E_{g_0}\sin\omega t, VCV_C and ICI_C are the voltage…EasyDiagram basedHas a figure
  6. 17 Mar 2021, Shift 2 · Q7Match List - I with List - II List - I List - II (a) Phase difference between current and voltage in a purely resistive AC circuit (i)…EasyMatch the list
  7. 9 Jan 2020, Shift 2 · Q15In LC circuit the inductance L=40L = 40 mH and capacitance C=100 μC = 100\ \muF. If a voltage V(t)=10sin⁡(314 t)V(t) = 10\sin(314\,t) is applied to the circuit,…MediumSingle 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 108 of the 174 JEE Main shifts held from 2017 to 2026.