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Chapter 37: Q. 8 (page 1081)

8. The current in a Crookes tube is10nA. How many electrons strike the face of the glass tube each second?

Short Answer

Expert verified

Total number of electrons striking the surface are 6.25脳1010.

Step by step solution

01

Step 1. Given information

The current in a Crookes tube is given as10nA.

02

Step 2. Simplify

current is defined as charge per unit time

i=n脳et

where n =number of electrons , e =charge of each electron(1.6脳10-19) and t is time (1sec) .

solving

n=i脳et=10脳10-9脳11.6脳10-19=6.25脳1010

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