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scorpa
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Really Hard Circuit Question- With LINK
Hello there!
I am doing a really tough physics question on circuits :yuck: . I am attaching the picture of the circuit so you can actually see what is going on
These are the questions:
a) What is the current through R1?
This one was easy I just found the total resistance of the circuit and used the equation V= IR to get a current of 2.4 A which is the answer/
b) What is the current through R4?
I have no clue how to do this one, no matter what I do I get an answer either to high to to low. The answer should be 0.8 A.
c) What is the power dissipated in R2?
I have a feeling that I can't get this one because I can't get the one before it. The answer should be 5.1W.
d) What is the total power dissipated in the circuit?
I could do this one. It's just p = iv (12.0V)(2.4A) = 29W
Oh and one more really stupid thing. When you are drawing a graph and it says to plot resistance as a function of the cross-sectional area the resistance should go on the x-axis right?
Hello there!
I am doing a really tough physics question on circuits :yuck: . I am attaching the picture of the circuit so you can actually see what is going on
These are the questions:
a) What is the current through R1?
This one was easy I just found the total resistance of the circuit and used the equation V= IR to get a current of 2.4 A which is the answer/
b) What is the current through R4?
I have no clue how to do this one, no matter what I do I get an answer either to high to to low. The answer should be 0.8 A.
c) What is the power dissipated in R2?
I have a feeling that I can't get this one because I can't get the one before it. The answer should be 5.1W.
d) What is the total power dissipated in the circuit?
I could do this one. It's just p = iv (12.0V)(2.4A) = 29W
Oh and one more really stupid thing. When you are drawing a graph and it says to plot resistance as a function of the cross-sectional area the resistance should go on the x-axis right?
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