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What must the charge (sign and magnitude) of a 1.43-g particle be for it to remain...

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Physics

What must the charge (sign and magnitude) of a 1.43-g particlebe for it to remain stationary when placed in a downward-directedelectric field of magnitude 690 N/C ?

What is the magnitude of an electric field in which the electricforce on a proton is equal in magnitude to its weight?

Answer & Explanation Solved by verified expert
4.2 Ratings (477 Votes)
a Simce the lectric field is acting downwards we would want a charge such that this electric field applies a force on it in the upward direction opposite to gravity Hence the charge must be    See Answer
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