Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
woleraymond
Group Title
A television set shoots out a beam of electrons. The beam current is 10uA.How many electrons strike the TV screen each second? How much charge strike the screen in a minute
 one year ago
 one year ago
woleraymond Group Title
A television set shoots out a beam of electrons. The beam current is 10uA.How many electrons strike the TV screen each second? How much charge strike the screen in a minute
 one year ago
 one year ago

This Question is Closed

JamesWolf Group TitleBest ResponseYou've already chosen the best response.1
10uA is 10 microamps or \[10^{5}\] amps. 1 Amp is \[6.241 \times 10^{18}\] electrons passing by a section per second. So 10uA will be:\[\frac{6.241 \times 10^{18}}{10^{5}} = 6.241 \times 10^{13}\] electrons per second. Which is interesting because it doesn't depend on the cross sectional that the electrons travel through due to the way current is defined. Which I find strange. As for charge well 1 amp is a coulomb every second. A coulomb, C, is the unit of charge. Since we have one hundred thousandth of an amp and one amp is one coulomb per second, it makes sense that we have one hundred thousandth of a colomb every second. Times this by your amount of seconds, 60, gives \[10 ^{5} C \times 60 = 6 \times 10 ^{4}C\] which is 600 uC , or 600 millicoulomb's of charge in a minute
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.