Current, voltage, and power

  • Thread starter -EquinoX-
  • Start date
  • #1
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Homework Statement



I am reviewing an exam which is from the 2001 of my class

http://img194.imageshack.us/img194/5340/65220653.jpg [Broken]
http://img194.imageshack.us/img194/12/35654148.jpg [Broken]

The answer key states for no. 10 the answer is
Voltage out in circuit with dependent source is -2 V.


and for no. 11 is
60-ohms resistor in single big loop dissipates 15 W

Homework Equations





The Attempt at a Solution



Problem is how do they get these numbers, the question seems to be really simple... can someone guide me
 
Last edited by a moderator:

Answers and Replies

  • #2
berkeman
Mentor
60,575
10,893

Homework Statement



I am reviewing an exam which is from the 2001 of my class

http://img191.imageshack.us/i/79549579.jpg/
http://img200.imageshack.us/i/53295341.jpg/

The answer key states for no. 10 the answer is
10mA current source (in parallel with R and dep current source) delivers 100uW

and for no. 11 is
60-ohms resistor in single big loop dissipates 15 W

Homework Equations





The Attempt at a Solution



Problem is how do they get these numbers, the question seems to be really simple... can someone guide me

The attachments didn't seem to work...
 
Last edited by a moderator:
  • #3
564
1
I fixed it now.

For no. 10, my guess is that v0 is 0.04V, as 10mA has to equal to the dependent source which is 0.25v0. Is this true?

For no. 11, p = v^2/R, so why isn't it just 100^2/60
 
Last edited:

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