If the current in a wire of a cd player is 12.0 ma, how long would it take for 6.50 c of charge to pass a point in this wire? answer in units of s.

The current intensity is defined as the amount of charge Q that passes through a certain point of an electrical wire in a time interval of :


In our problem, the current intensity is

while the amount of charge that passes a certain point of the wire is 


If we re-arrange the previous equation:

we can find the time needed for this amount of charge to pass through a point of the wire:

It won't lose or gain electrons if it's a covalent bond it shares the electrons with another atom or atoms. if it is an ionic bond it will lose the 3 electrons on the outer shell and become a positively charged ion.  credit goes to @sunshinebaby of answers.yahoo.com.

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