CUET · PHYSICS · PYQ PAPER 2025
If the net flux through a cube is \( \Phi = 1.05 \, N \, m^2 C^{-1} \), what will be the total charge inside the cube?
(Given: The permittivity of free space is \( \epsilon_0 = 8.85 \times 10^{-12} \, C^2 N^{-1} m^{-2} \)).
- A \( 9.29 \times 10^{-11} \, C \)
- B \( 9.27 \times 10^{-10} \, C \)
- C \(9.22 \times 10^{-6} \, C \)
- D \( 9.29 \times 10^{-12} \, C \)
Answer & Solution
Correct Answer
(D) \( 9.29 \times 10^{-12} \, C \)
Step-by-step Solution
Detailed explanation
\( Q_{enc} = \Phi \epsilon_0 \) \( Q_{enc} = (1.05)(8.85 \times 10^{-12}) \) \( Q_{enc} = 9.2925 \times 10^{-12} \, C \)
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