CUET · PHYSICS · PYQ PAPER 2025
A point charge of 17.7 \( \mu C \) is located at the center of a cube of side 0.03 m. Find the electric flux through each face of the cube.
- A \( 3.3 \times 10^5 \, N m^2 C^{-1} \)
- B \( 1.3 \times 10^5 \, N m^2 C^{-1} \)
- C \( 5.3 \times 10^5 \, N m^2 C^{-1} \)
- D \( 6.3 \times 10^5 \, N m^2 C^{-1} \)
Answer & Solution
Correct Answer
(A) \( 3.3 \times 10^5 \, N m^2 C^{-1} \)
Step-by-step Solution
Detailed explanation
\( \Phi_{face} = \frac{Q}{6\epsilon_0} \) \( \Phi_{face} = \frac{17.7 \times 10^{-6} \, C}{6 \times 8.854 \times 10^{-12} \, C^2 N^{-1} m^{-2}} \) \( \Phi_{face} \approx 3.3 \times 10^5 \, N m^2 C^{-1} \)
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
- A charge particle having charge q is moving in a circle of radius R with a uniform speed v. The associated magnetic moment \(\mu\) is given by :CUET 2023 Medium
- What is the refractive index of the material of a prism if the angle of minimum deviation for the prism of angle \( \frac{\pi}{3} \) is \( \frac{\pi}{6} \)?CUET 2023 Medium
- A radiation of energy E is normally incident on a perfectly reflecting surface. The momentum transferred to the surface will be: (Given: speed of light c)CUET 2025 Easy
- A photosensitive surface is illuminated by a point source of light 1 m away. When the source is shifted to 2 m, thenCUET 2025 Medium
- The torque acting on a magnet of magnetic length 8 cm and pole strength 20 A m placed in a magnetic field of \( 3 \times 10^{-5} \, T \) at an angle of \( \pi/6 \) rad will beCUET 2025 Easy
- A charged particle moves along a circular path in a uniform magnetic field of 0.04 T with a velocity of \( 2 \times 10^5 \text{ m/s} \). The charge to mass ratio of the particle is \( 5 \times 10^7 \text{ C/kg} \). The radius of the circular path of the charged particle is:CUET 2025 Medium
More PYQs from CUET
- The corner points of a bounded feasible region determined by the following system of linear inequalities \(x+3 y \leq 60, x+y \geq 10, x \leq y, x \geq 0, y \geq 0\) are \((0,10),(5,5),(15,15)\) and (0,20). Let \(z=2 p x+q y, p, q>0\). If maximum of z occurs at both (15, 15) and (0, 20), then the relation between p and q isCUET 2025 Hard
- Match List-I (Amino acid) with List-II (Example)
List - I (Amino acid) List-II (Example) (A) Basic amino acid (I) Glycine (B) Acidic amino acid (II) Alanine (C) Neutral amino acid (III) Aspartic acid (D) Optically inactive amino acid (IV) Lysine
Choose the correct answer from the options given below:CUET 2025 Easy - Daily life phenomena based on scattering of light are
(A) Blue colour of sky
(B) Clouds appearing white
(C) Twinkling of stars
(D) Danger signals being red
Choose the correct answer from the options given below:CUET 2025 Medium - The value of \(\int \frac{\cos x d x}{(1+\sin x)(2+\sin x)}\) is :CUET 2023 Medium
- Partial Roasting of chalcopyrite produces :CUET 2023 Hard
- Arrange the following compounds in increasing order of their acidity :
(A) Phenol
(B) 4 -methylphenol
(C) 3-nitrophenol
(D) 4-nitrophenol
Choose the correct answer from the options given below :CUET 2025 Hard