The magnitude of an electric field between two separated plates can be calculated by the relation:
Correct answer: A. ΔV = Ed
- A. ΔV = Ed
- B. ΔV = E/d
- C. ΔV = E/qo
- D. E = d/ΔV
Explanation
The correct answer is Option A: ΔV = Ed. This formula is used to calculate the magnitude of the electric field (E) between two parallel plates, where ΔV is the voltage difference across the plates and d is the distance separating them. Option B is incorrect as it inversely relates E to d, Option C introduces an irrelevant term, qo, and Option D incorrectly inverts the relationship, suggesting an incorrect dependency of the electric field on distance and voltage.
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About Electric Field
An electric field is the force experienced per unit positive test charge, with the field of a point charge given by E = kQ/r² and directed away from positive charges or toward negative charges. Questions involve field lines, superposition and force on a charge, while electric field must be distinguished from electric potential.
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