question_answer

In a certain particle accelerator, electrons emerge in pulses at the rate of 250 pulses per second. Each pulse is of duration of 200 ns and the electrons in the pulse constitute a current of 250 mA. The number of electrons delivered by the accelerator per pulse Is

A)  \[8.00\text{ }\times \text{ }{{10}^{10}}~\]

B)  \[5.00\text{ }\times \text{ }{{10}^{8}}\]     

C)  \[3.13\text{ }\times \text{ }{{10}^{11}}\]    

D)  \[9.60\text{ }\times \text{ }{{10}^{10}}\]