CUET · PHYSICS · PYQ PAPER 2023
The electric charges are distributed in a small volume. The flux of the electric field through a sphere of radius 10 cm surrounding the total charge is 20 Vm. The flux over a concentric sphere of radius 20 cm will be:
- A 20 Vm
- B 25 Vm
- C 40 Vm
- D 200 Vm
Answer & Solution
Correct Answer
(A) 20 Vm
Step-by-step Solution
Detailed explanation
\(\Phi = \frac{Q_{enc}}{\epsilon_0}\) \(Q_{enc}(\text{10 cm}) = Q_{enc}(\text{20 cm})\) \(\Phi(\text{20 cm}) = \text{20 Vm}\)
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