- #1
matzis
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Homework Statement
Hello everyone,
I would like to ask some True/False questions and I would like the correct option. I need this for exams in my College, to be sure I got the right answers. Sorry for any mistakes in terminology, English is not my native language
So here are the questions:
1) Does the type "Ιd=Ιs[exp(V/nVT)-1]" applies to both Inverted and Correct polarization of a diode?
2) Are thermal losings on a 2 diode type transformer greater than a bridge-type transformer (same DC output)
3) In a transistor, does Ic depends on Vbe?
4) To make Ic 10 times bigger, do you need to increase Vbe by 60mv?
5) Is temperature coeefficient (a) on Vbe diode of a transistor positive?
6) A bipolar transistor can be represented with two diodes on a back to back connection
7) The profit (β) of a transistor is greater if it is working on corruption region rather than on the linear rigeon
8) The point of constructing a circuit of an amplifier transistor is to achieve the greatest profit (β) possible
Thanks in advance, sorry again for mistakes in terminology, If you don't underestand a question I will try to explain it, so ask me!
Homework Equations
Ιd=Ιs[exp(V/nVT)-1]
The Attempt at a Solution
My opinion in the answers:
1) I believe the first one is True, as In my book there is a diagram that confirms that, however I am not sure this is why I wanted to confirm here
2) False, because there are not any answers in my book for this, and I could not find any specific information about this
3) False, because Vbe is 0.7 (depends on diode) and it does not change, so Ic cannot depend on that
4) False, because Vbe depends on the diode type and you cannot change that manually
5) My book doesn't include any information regarding this question but I think it's True
6) No it cannot because transistor is a different device than didoe so False
7) Transistor is designed to work in linear region so False
8) True since when we built an amplifier we want the max possible outcome (profit)
Are my answers correct?