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The charge on an electron is 1.6 xx 10^(...

The charge on an electron is `1.6 xx 10^(-9)C` . How many electrons strike the screen of a cathode ray tube each second when the beam current is

A

`10^(19)`

B

`10^(17)`

C

`10^(15)`

D

`10^(13)`

Text Solution

Verified by Experts

The correct Answer is:
B
As `"ne"=q=lxxt`
`nxx16xx10^(-19)=((16)/(1000))xx1`
`rArr n=(16xx10^(-19))/(1000xx16)=10^(17)`
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