Hi all,
I am having a tough time trying to go about the following related rates problem in Calculus involving resistance and circuits. The main problem is that instead of getting the total for R1 and R2, this time the problem involves only getting the total resistance and figure out the rest. Any help on how to approach would be great appreciated!
Make a circuit of an iron resistor, (temp coefficient of 5e^-3 ohms) and a silicon (-7.5e^-2 ohms). The total resistance of the circuit is 150 and the circuit is stable with changes in temperate = 0. (dR/dT=0) That's all the problem gives.
I started setting the problem up as 1/150 =1/R1 + 1/R2. As I went from there I messed something up because I ended up getting 581 ohms - which is apparently incorrect. I'm just not sure what to do and would appreciate some assistance. Thanks!
I am having a tough time trying to go about the following related rates problem in Calculus involving resistance and circuits. The main problem is that instead of getting the total for R1 and R2, this time the problem involves only getting the total resistance and figure out the rest. Any help on how to approach would be great appreciated!
Make a circuit of an iron resistor, (temp coefficient of 5e^-3 ohms) and a silicon (-7.5e^-2 ohms). The total resistance of the circuit is 150 and the circuit is stable with changes in temperate = 0. (dR/dT=0) That's all the problem gives.
I started setting the problem up as 1/150 =1/R1 + 1/R2. As I went from there I messed something up because I ended up getting 581 ohms - which is apparently incorrect. I'm just not sure what to do and would appreciate some assistance. Thanks!