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A net charge of 38 mC passes through the cross-sectional area of a wire in 15 sA net...
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a) The current is defined by,
current = charge / time or I = Q/t
In words it is it is the amount of charger per second.
I = 38 mC / 15 S
I = 2.533 mA.
b) The charge per second is 2.533 mC.
There charge for 1 min = 2.533 x 60
= 152 mC per min
The charge of an electron = 1.602 x 10^(-19) C
Therefore number of electrons per min,
= 152 mC per min / 1.602 x 10^(-19) C
= 9.488 x 10^17
The number of electrons per minute is 9.488 x 10^17.
Posted by thilina-g on May 9, 2012 at 7:15 AM (Answer #1)
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