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CGP EDU Academic Team
Published on: September 12, 2026
A point charge of 40 stat coulomb is placed 2 cm in front of an earthed metallic plane plate of large size. Then the force of attraction on the point charge is
Text Solution
Verified by ExpertsThe correct answer is:
A
By the concept of electrical image, it is considered that an equal but opposite charge present on the other side of the plate at equal distance. Hence force
$F = \frac{40 \times 40}{4^2} = 100 \text{ dynes}$
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