Graphing the Power dissipated in a resistor

AI Thread Summary
The discussion focuses on graphing power dissipation in a series circuit with a constant voltage source and a variable resistor, as well as a constant current source with a variable resistor. The approach involves using the power equation to define constants for each series, allowing the relationship between resistance (R) and power (P) to be established. There is a query about the validity of this method, prompting a suggestion to verify the approach. The conversation emphasizes the importance of confirming the correctness of the method used. Overall, the participants are engaged in ensuring the accuracy of the graphing technique for power dissipation.
guyvsdcsniper
Messages
264
Reaction score
37
Homework Statement
Graph the power dissipated in each resistor as a function of its resistance.
Relevant Equations
P=VI
I am solving #5 in the attached image.

So I am graphing the power dissipated by a series circuit which : (a) Contains a constant voltage source and a variable resistor, R (b) Contains a constant current source and a variable resistor.

It makes sense to me to just use the power equation that allows me to define the constant from each series and the power will be determined by what relationship R shares with P in said equation.

Just wondering if I have the right approach.

IMG_098E9BFE4AFE-1.jpeg
 
Physics news on Phys.org
Looks good to me. Why are you doubting your method? How could you verify yourself that you are correct?
 
Thread 'Voltmeter readings for this circuit with switches'
TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
Thread 'Struggling to make relation between elastic force and height'
Hello guys this is what I tried so far. I used the UTS to calculate the force it needs when the rope tears. My idea was to make a relationship/ function that would give me the force depending on height. Yeah i couldnt find a way to solve it. I also thought about how I could use hooks law (how it was given to me in my script) with the thought of instead of having two part of a rope id have one singular rope from the middle to the top where I could find the difference in height. But the...
Back
Top