Yes.Is it possible to solve for any resistar values or all four?
well can you provide a hint or a start point?Yes.
Hi,well can you provide a hint or a start point?
You need to reread the conditions for homework help. We have an expectation that you will show some effort, as suggested by some of the hints given.well can you provide a hint or a start point?
The best you can do is pick a (big enough) value for any one of R0, R1, R2 and R4. It has to be big enough so that the resistor in series with it will satisfy the need for the voltage between them and the sum of the two of them to achieve more than the 5.94 on the diagram.With just the information in the diagram, can you determine the ratio of R2 to R3 and the ratio of R0 to R1
I would assume the drawing is the given problem and ignore what follows, since it adds nothing not already in the diagram.Can I assume that the statement “[R0+R1+R2+R3]=29.23Ω” refers to the serial/parallel combination of those resistors and not their simple sum?
I has to be the series/parallel combination. When I first skimmed the problem, I assumed that it was referring to the simple algebraic sum as a means of providing the additional constraint needed to produce a unique solution.Can I assume that the statement “[R0+R1+R2+R3]=29.23Ω” refers to the serial/parallel combination of those resistors and not their simple sum? If that is the case, then imagine that R0 & R1 have values in the hundreds of meg-ohms (essentially making them irrelevant to finding the values of R2 & R3.) That would mean that there are an infinite number of possible solutions to the problem.
Notice that the voltages at the midpoints of the R0,R1 string and the R2,R3 string are both in the vicinity of 3 volts. 3 volts is about 1/2 of 5.94 volts; this means that the ratios of the R0,R1 combo and the R2,R3 combo are about 1/2 plus or minus a bit. The resistance of the R0,R1 series combo and the R2,R3 series combo in parallel is about 30 ohms, and if all 4 resistors were 30 ohms, the series/parallel combo resistance would be 30 ohms and the ratio of the two voltage dividers would be 1/2. It's possible then that the values of the 4 resistors are all near 30 ohms. Just noticing the preceeding bits is a hint.well can you provide a hint or a start point?
Not so hard for those who understand the hint. It also helps to have studied discrete mathematics.The notion (hope?) that the expected solution consists of exactly one set of integer values for the resistors runs into problems since solving for integer solutions for such equations is a pretty hard task.
Hard enough that there is no general algorithm to determine if a polynomial equation has integer solutions even when the coefficients are integers. It took seventy years, but it's been proven that no such algorithm can exist.Not so hard for those who understand the hint. It also helps to have studied discrete mathematics.
by Jake Hertz
by Duane Benson
by Jake Hertz