Electric Field/Force Problem

  • Thread starter s4orce
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1. What must the charge (sign and magnitude) of a 1.45 g particle be for it to remain stationary when placed in a downward directed electric frield of magnitude 650N/C? also What is the magnitude of an electric field in which the electric force on a proton is equal in magnitude to its weight.

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Answers and Replies

  • #2
Dick
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Compute the gravitational force and the electric force and set them equal and opposite, right? What else would you do?
 
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