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Electromagnetic Induction question

2023 · Shift 1 · Q51
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  5. /2023 · Shift 1 · Q51

Electromagnetic Induction question

2023 · Shift 1 · Q51

JEE AdvancedPhysicsElectromagnetic InductionMCQ+3 / −1
A thin conducting rod MNM NMN of mass 20 gm20 ~\mathrm{gm}20 gm, length 25 cm25 \mathrm{~cm}25 cm and resistance 10 Ω10 ~\Omega10 Ω is held on frictionless, long, perfectly conducting vertical rails as shown in the figure. There is a uniform magnetic field B0=4 TB_0=4 \mathrm{~T}B0​=4 T directed perpendicular to the plane of the rod-rail arrangement. The rod is released from rest at time t=0t=0t=0 and it moves down along the rails. Assume air drag is negligible. Match each quantity in List-I with an appropriate value from List-II, and choose the correct option.

[Given: The acceleration due to gravity g=10 m s−2g=10 \mathrm{~m} \mathrm{~s}^{-2}g=10 m s−2 and e−1=0.4e^{-1}=0.4e−1=0.4]

JEE Advanced 2023 Paper 1 Online Physics - Electromagnetic Induction Question 4 English
List - I List - II
(P) At t=0.2 st=0.2 \mathrm{~s}t=0.2 s, the magnitude of the induced emf in Volt (1) 0.07
(Q) At t=0.2 st=0.2 \mathrm{~s}t=0.2 s, the magnitude of the magnetic force in Newton (2) 0.14
(R) At t=0.2 st=0.2 \mathrm{~s}t=0.2 s, the power dissipated as heat in Watt (3) 1.20
(S) The magnitude of terminal velocity of the rod in ms−1\mathrm{m} \mathrm{s}^{-1}ms−1 (4) 0.12
(5) 2.00
  1. A
    P→5,Q→2,R→3,S→1P \rightarrow 5, Q \rightarrow 2, R \rightarrow 3, S \rightarrow 1P→5,Q→2,R→3,S→1
  2. B
    P→3,Q→1,R→4,S→5P \rightarrow 3, Q \rightarrow 1, R \rightarrow 4, S \rightarrow 5P→3,Q→1,R→4,S→5
  3. C
    P→4,Q→3,R→1,S→2P \rightarrow 4, Q \rightarrow 3, R \rightarrow 1, S \rightarrow 2P→4,Q→3,R→1,S→2
  4. D
    P→3,Q→4,R→2,S→5P \rightarrow 3, Q \rightarrow 4, R \rightarrow 2, S \rightarrow 5P→3,Q→4,R→2,S→5
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