charges of +10uc ,+20uc and -20uc are placed in air of the corner of an equilateral triangle having each side equal to 2cm . determine the force on a charge of +10uc.
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Explanation:
90newton is the answer
- force For=Fcos∅
- ∅=60degree
- apply coulombs law kq1q2/r²*1/2
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