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A certain particle carries 2. 5 xx 10 ^(...

A certain particle carries `2. 5 xx 10 ^(-16) C `of static electric charge. Calculate the number of electrons present in it.

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We know that
Charge of one electron `= 1.602 xx 10 ^(-19) C`
Number of electrons present `= (2. 5 xx 10 ^(-16))/( 1 . 602 xx 10 ^(-19)) = 1. 56 xx 10 ^(3)`
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