circuit theory questions with solutions

Showing 1–10 of 23 questions

• Multi-correctmediumCurrent electricitycircuit theory

  In the circuit shown the switch is closed at time t = 0 then

  

  Select all that apply

  • Option A

    I = (V₀/R)$e^(-t/RC)$

  • Option B

    V꜀ = V₀(1-$e^(-t/RC))$

  • Option C

    Power absorbed by capacitor = (V₀²/R)($e^(-t/RC)-e^(-2t/RC))$

  • Option D

    V꜀ = V₀$e^(-t/RC)$

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  Current Electricity Objective Conversion

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• MCQmediumCurrent electricitycircuit theory

  As shown in the figure, a network of resistors is connected to a battery of 24 V with an internal resistance of 3Ω. The currents through the resistors R₄ and R₅ are I₄ and I₅ respectively. The values of I₄ and I₅ are :

  

  Options

  • Option A

    I₄ = 8/5 A and I₅ = 2/5 A

  • Option B

    I₄ = 24/5 A and I₅ = 6/5 A

  • Option C

    I₄ = 6/5 A and I₅ = 24/5 A

  • Option D

    I₄ = 2/5 A and I₅ = 8/5 A

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  JEE Mains 2023 24 jan morning shift

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• Multi-correctdifficultCurrent electricitycircuit theory

  In the circuit shown in Figure B1, B2 and B3 are identical bulbs and C is a parallel plate capacitor.
  

  

  Select all that apply

  • Option A

    In steady state, B1 is brightest

  • Option B

    In steady state, B2 and B3 have equal brightness

  • Option C

    While plate separation increases, B3 glows temporarily

  • Option D

    While plate separation increases, B2 becomes dimmer temporarily

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• MCQmediumCurrent electricitycircuit theory

  In the given circuit, the current in resistance R₃ is :

  

  Options

  • Option A

    1 A

  • Option B

    1.5 A

  • Option C

    2 A

  • Option D

    2.5 A

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  JEE Mains 2024 29 Jan Evening Shift

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• MCQeasyCurrent electricitycircuit theory

  Which one of the following is not a measurable quantity ?

  Options

  • Option A

    Voltage difference

  • Option B

    Resistance

  • Option C

    Voltage

  • Option D

    Displacement current

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  JEE Mains 202628 January Evening Shift

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• MCQdifficultCurrent electricitycircuit theory

  Find current through the cell and potential difference between A and D in the circuit shown in the Figure.

  

  Options

  • Option A

    I = E/R and V(A,D) = E/2

  • Option B

    I = E/(2R) and V(A,D) = E/2

  • Option C

    I = 2E/R and V(A,D) = E

  • Option D

    I = E/R and V(A,D) = 0

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• MCQmediumCurrent electricitycircuit theory

  Refer to the circuit shown in the figure. Using the current directions I₁, I₂ and I₃ indicated there, what are the values of the three currents?

  

  Options

  • Option A

    I₁ = 2.5 A, I₂ = 1.875 A, I₃ = 1.875 A

  • Option B

    I₁ = 1.875 A, I₂ = 2.5 A, I₃ = 1.875 A

  • Option C

    I₁ = 1.875 A, I₂ = 1.875 A, I₃ = 2.5 A

  • Option D

    I₁ = 2.5 A, I₂ = 2.5 A, I₃ = 1.875 A

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  JEE Mains 2026 5 April Morning Shift

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• MCQmediumCurrent electricitycircuit theory

  In the resistor network shown, the current through R₂ is:

  

  Options

  • Option A

    1/3 A

  • Option B

    1/4 A

  • Option C

    2/3 A

  • Option D

    1/2 A

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  JEE Mains11 April 2023Shift 2Evening Shift

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• MCQmediumCurrent electricitycircuit theory

  Refer to the network shown in the figure. The three upper branches are identical, each containing three 5 V cells and three 3 Ω resistors in series, while the lower branch contains three 3 Ω resistors in series. What current flows between terminals A and B?

  

  Options

  • Option A

    12.5 A

  • Option B

    1.25 A

  • Option C

    7.5 A

  • Option D

    5 A

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  JEE Mains 2026 5 April Morning Shift

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• IntegereasyCurrent electricitycircuit theory

  For the electrical circuit shown in the original question figure, find the current drawn from the battery.

  

  Your answer

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  JEE Main 2025 (Online) 22 jan morning shiftkinematics previous year

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