CUET · PHYSICS · PYQ PAPER 2023
Match List-I with List-II
| List-I (Quantity) | List-II (Variation with distance r) |
| (A) Electric field intensity (E) due to a single charge | (I) \( \propto \frac{1}{r} \) |
| (B) Electric field intensity due to electric dipole | (II) \( \propto \frac{1}{r^4} \) |
| (C) Electric potential (V) due to a single charge | (III) \( \propto \frac{1}{r^3} \) |
| (D) Electric field intensity due to a quadrupole | (IV) \( \propto \frac{1}{r^2} \) |
Choose the correct answer from the options given below:
- A A-IV, B-III, C-II, D-I
- B A-I, B-II, C-III, D-IV
- C A-III, B-IV, C-II, D-I
- D A-IV, B-III, C-I, D-II
Answer & Solution
Correct Answer
(D) A-IV, B-III, C-I, D-II
Step-by-step Solution
Detailed explanation
For a single charge, the electric field follows \(\frac{1}{r^2}\) while the potential follows \(\frac{1}{r}\). As you increase complexity to dipoles and quadrupoles, the field strength drops faster at \(\frac{1}{r^3}\) and \(\frac{1}{r^4}\) respectively. D) A-IV, B-III, C-I, D-II
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