JEE Main 2025 · PhysicsMultiple choiceSingle correctMediumConceptual

JEE Main 7 April 2025, Shift 1, Physics Q26

Question 26 of 75 in this shift, Physics question 1 of 25, Section A.

\epsilon_0

denotes the permittivity of free space and

\Phi_E

is the flux of the electric field through the area bounded by the closed surface, then dimensions of

\left(\epsilon_0 \frac{d\phi_E}{dt}\right)

are that of :

(1)electric charge
(2)electric potential
(3)electric currentOfficial answer
(4)electric field

Official answer

Option 3

NTA final key.

Chapter: Units and Measurements
Topic: Parallel Plate Capacitors
Idea tested: Displacement Current Between Plates

Same idea in other shifts

Asked 7× in all

5 Apr 2026, Shift 1 · Q37A displacement current of 4.0 A can be set up in the space between two parallel plates of $6\ \mu$ F capacitor. The rate of change of…EasySingle correct
5 Apr 2024, Shift 1 · Q45An alternating voltage of amplitude 40 V and frequency 4 kHz is applied directly across the capacitor of $12\ \mu\mathrm{F}$ . The maximum…EasySingle correct
1 Feb 2024, Shift 1 · Q44A parallel plate capacitor has a capacitance C = 200 pF. It is connected to 230 V ac supply with an angular frequency 300 rad/s. The rms…MediumSingle correct
29 Jun 2022, Shift 2 · Q56The displacement current of 4.425 $\mu A$ is developed in the space between the plates of parallel plate capacitor when voltage is…MediumNumerical value
4 Aug 2021, Shift 2 · Q28The voltage between the plates of a capacitor of capacitance $5\mu\mathrm{F}$ is changing at a rate of…EasyNumerical value
17 Mar 2021, Shift 2 · Q25Seawater at a frequency $f=9\times10^{2}$ Hz, has permittivity $\varepsilon=80\varepsilon_0$ and resistivity $\rho=0.25\ \Omega$ m. Imagine…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. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.