Potential Due To Point Charge
What is the electric potential at a distance of 0.3 m from a point charge of +6 nC? (k = 9 × 10⁹ N·m²/C²)
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About This Question
- Subject
- physics
- Chapter
- electrostatics
- Topic
- potential due to point charge
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
180 V
- Potential Definition: The work per unit charge to bring a charge from infinity to a point.
- Formula: V=krq.
- Identify Data:
- k=9×109.
- q=6×10−9 C.
- r=0.3 m.
- Calculation:
- V=0.39×109×6×10−9=0.354.
- Final Value: V=180 Volts.
This easy difficulty physics question is from the chapter electrostatics, covering the topic of potential due to point charge. It appeared in the 2025 exam.
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