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The electric field intensity at a distance $r$ from a point charge $q$ is proportional to:
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Subject
Physics
Topic
Electromagnetism
Subtopic
Electrostatics
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$r^2$
$r$
$1 / r$
$1 / r^2$
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Explanation
According to fundamental physics formulas, $1 / r^2$ is correct.…
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Concept Behind This Question
This question focuses on the concept of Electrostatics under the broader topic of Electromagnetism.
Related key concepts: Physics.
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Question Details
- Subject:
- Physics
- Topic:
- Electromagnetism
- Subtopic:
- Electrostatics
- Difficulty:
- medium
- Source:
- Past Papers
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According to Coulomb's Law, if the physical distance ($r$) between two stationary point charges is instantly doubled, the electrostatic force between them will:
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