1.

A current of 1 mA is flowing through a copper wire.  How many electrons will pass a given point in one second            \[\left[ e=\text{ }1.6\text{ }\times \text{ }{{10}^{19}}Coulomb \right]\]      [RPMT 2000; MP PMT 2002]

A.             6.25 × \[{{10}^{19}}\]       
B.            6.25 × \[{{10}^{15}}\]
C.            6.25 × \[{{10}^{31}}\]
D.                                      6.25 × \[{{10}^{8}}\]
Answer» C.            6.25 × \[{{10}^{31}}\]


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