CUET · PHYSICS · PYQ PAPER 2023
When a capacitor is subjected to a D.C. source it takes small time internal to get fully charged up. During this small time interval there is no passage of charge through dielectric, yet we use a term - displacement current. This term is used because :
- A There is a slow motion of charge from one plate to another
- B There is a continues change of electric field between plates and hence electric flux
- C The electric charge from battery stops moving
- D There is temporary breakdown of dielectric
Answer & Solution
Correct Answer
(B) There is a continues change of electric field between plates and hence electric flux
Step-by-step Solution
Detailed explanation
Displacement current arises because the changing electric field between the charging plates produces a magnetic field, just as a physical current would. Maxwell introduced this term to maintain continuity in circuits where conduction current cannot flow, like across a…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from PHYSICS
- An unpolarised beam of light of intensity \(I_0\) falls on a single polaroid. The intensity of the emergent beam isCUET 2025 Hard
- An equiconvex lens has a focal length of 20 cm and its radius of curvature is 30 cm. Its refractive index is :CUET 2023 Hard
- A long solenoid with 30 turns/cm has a small loop of area \( 3 \text{ cm}^2 \) placed inside it normal to its axis. If the current in the solenoid changes steadily from 3.0 A to 6.0 A in 0.1 s, the induced emf in the loop is :CUET 2025 Hard
- Some important general properties of the electric field lines are given below:
(A) Field lines start from positive charges and end at negative charges
(B) In a charge-free region, electric field lines can be taken to be continuous curves without any breaks
(C) Electrostatic field lines form closed loops
(D) Two field lines can never cross each other
Choose the correct answer from the options given below:CUET 2025 Medium - A 10 V battery of negligible internal resistance is being charged by a 200 V battery with a resistance of \( 38 \Omega \) in series. The value of the current in the circuit isCUET 2025 Medium
- A circular coil of 20 turns and radius 10 cm is placed in a uniform magnetic field of 0.10 T normal to the plane of the coil. If the current in the coil is 5 A . The total torque on the coil is :CUET 2023 Hard
More PYQs from CUET
- Pyramid of energy is always upright because:
1. Energy flows unidirectionally
2. The number of organisms at different trophic levels do not affect energy
3. Some energy is lost when we move from one trophic level below to next trophic level above
4. Energy largely depends on the biomass at the base trophic levelCUET 2025 Easy - The function f(x) = \(\log _e\)(sin x), x ∈ (0,π) is
(A) strictly increasing on \(\left(0, \frac{\pi}{2}\right)\)
(B) strictly decreasing on \(\left(0, \frac{\pi}{2}\right)\)
(C) strictly increasing on \(\left(\frac{\pi}{2}, \pi\right)\)
(D) strictly decreasing on \(\left(\frac{\pi}{2}, \pi\right)\)
(E) strictly increasing on \((0, \pi)\)
Choose the correct answert from the option given below :CUET 2025 Hard - The unequivocal proof that DNA is the genetic material came from the experiments of __________.CUET 2025 Hard
- Which of the following gives a yellow precipitate when treated with \(\text{I}_2\) in presence of \(\text{NaOH}\) ?CUET 2023 Easy
- Genetically modified organisms have been useful in many ways. Which one
of the following statements is not correct in the case of GMO plants?CUET 2025 Medium - In the circuit diagram shown in the figure, the resistance \( R_1 = 10 \, \Omega \), \( R_2 = 15 \, \Omega \) and E= 20 V. When the switch S is closed, the ratio of \( i_1 \) to \( i_3 \) will be:
CUET 2025 Easy