Login

Search the forums now!

Welcome, Guest. Please login or register.

November 01, 2025, 09:23:49 am
Pages: [1]   Go Down

Author Topic: Phototransistors  (Read 526 times)  Share 

0 Members and 1 Guest are viewing this topic.

Milkshake

  • Victorian
  • Trendsetter
  • **
  • Posts: 164
  • Respect: +1
Phototransistors
« on: June 12, 2011, 08:06:36 pm »
0
Do we need to know them for unit 3?
I know it doesn't list it on the study design, but several practise exams for the current study design that I've done have questions on them and I've just had to skip them.
Logged

adelaide.emily10

  • Guest
Re: Phototransistors
« Reply #1 on: June 12, 2011, 08:13:11 pm »
0
they cover it in the unit 3 section in physics12 textbook but i don't think you'll need to know a great deal about them and i have never seen any questions with calculations involving phototransistors
Logged

Lasercookie

  • Honorary Moderator
  • ATAR Notes Legend
  • *******
  • Posts: 3167
  • Respect: +326
Re: Phototransistors
« Reply #2 on: June 12, 2011, 08:17:00 pm »
0
I think all we need to know is it's an optical transducer. It's not a fast as a photodiode, but faster than an LDR. The Heinemann textbook goes into a bit of detail about them, but the Nelson book only briefly mentions them.

Which trials are you referring to?
Logged

Milkshake

  • Victorian
  • Trendsetter
  • **
  • Posts: 164
  • Respect: +1
Re: Phototransistors
« Reply #3 on: June 12, 2011, 08:33:30 pm »
0
Hmm ok thanks.

There's been a few of them, but the one I'm looking at right now is Chemology 2010
Logged

jinny1

  • Victorian
  • Part of the furniture
  • *****
  • Posts: 1328
  • .carpe diem
  • Respect: +105
  • School: Melbourne Dental School
Re: Phototransistors
« Reply #4 on: June 13, 2011, 09:19:55 am »
0
Chemology exams are retarded...
Logged
:D :) ;D :D :) ;D :D :) ;D :D :) ;D :D :) ;D :D :) ;D                               
Pages: [1]   Go Up