## Related questions with answers

An object with mass $m=1.0 \mathrm{~g}$ and charge $q$ is placed at point $A$, which is $0.05 \mathrm{~m}$ above an infinitely large, uniformly charged, nonconducting sheet $\left(\sigma=-3.5 \cdot 10^{-5} \mathrm{C} / \mathrm{m}^2\right)$. Gravity is acting downward $\left(g=9.81 \mathrm{~m} / \mathrm{s}^2\right)$. Determine the number, $N$, of electrons that must be added to or removed from the object for the object to remain motionless above the charged plane.

Solution

VerifiedIn this problem, we are given a charged object which is placed above an charged sheet in presence of gravitational force. We are asked to compute the number of electrons that must be added or removed from the object so that it remains motionless above the charged plane.

In order to answer this question, we need to apply electrical force and the gravitational force.

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