Determine the ratio of resistance

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To determine the ratio R1/R2, the values provided are V1=0V, V2=2.4V, and A=10.8A. The current through R2 was calculated to be 6mA, leading to a resistance of 400 ohms for R2 using the formula R=V/I. However, the calculation of 6mA is questioned since it requires knowledge of V1, V2, and A. The discussion emphasizes the need to express R1/R2 in terms of these variables, highlighting the importance of understanding the potential drop across the resistors. The conversation underscores the necessity of forming equations for each resistor to accurately derive the desired ratio.
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Homework Statement


Determine the value of the ratio R1/R2

sorry guys I forgot to write the values in, V1=0, V2=2.4V and A=10.8A

Homework Equations


V=IR

The Attempt at a Solution


I found thecurrent through R2 to be 6mA and then calculated resistance by doing 2.4/6mA=400ohms. Then i got stuck.
 

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How could you possibly have calculated 6 mA unless you know V1, V2, and A? I think the problem is asking for R1/R2 in terms of V1, V2, and A.
 


The only way we could assume the potential drop across V1 and V2 is to know the colour of the LED...but we don't have that.

If you have the equation R=V/I then you can form equations for each resistor R1 and R2; if you are aiming for higher grades (>=A) at college level you should know how to form ratios of equations.
 


Sorry guys I forgot to add the values in. My mistake. I've added the values in just then.
 

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