Help with this Combined resistor circuit problem?
https://postimg.cc/9rygSzJ4
Don't have a markscheme so wanted to know if this working is correct
For part a): my formulae was Qn+1 = 2R + (1/R + 1/Qn)^-1
Where Q1 = 3R, Q2 = 11R/4 and Q3 = 41R/15
Part b): I justed subbed R = 1 and R = 2 into the Q values in part a
Don't have a markscheme so wanted to know if this working is correct
For part a): my formulae was Qn+1 = 2R + (1/R + 1/Qn)^-1
Where Q1 = 3R, Q2 = 11R/4 and Q3 = 41R/15
Part b): I justed subbed R = 1 and R = 2 into the Q values in part a
Original post by MonoAno555
https://postimg.cc/9rygSzJ4
Don't have a markscheme so wanted to know if this working is correct
For part a): my formulae was Qn+1 = 2R + (1/R + 1/Qn)^-1
Where Q1 = 3R, Q2 = 11R/4 and Q3 = 41R/15
Part b): I justed subbed R = 1 and R = 2 into the Q values in part a
Don't have a markscheme so wanted to know if this working is correct
For part a): my formulae was Qn+1 = 2R + (1/R + 1/Qn)^-1
Where Q1 = 3R, Q2 = 11R/4 and Q3 = 41R/15
Part b): I justed subbed R = 1 and R = 2 into the Q values in part a
I am not sure if I understand the question correctly. (a) is asking you to “evaluate” the resistance of the networks of resistors with an infinite number of additional branches instead of evaluating the resistance of networks of the resistors in Figure 3.
You get the ideas for evaluating the infinite network of resistors by using the recursive methods.
Qn+1 = 2R + (1/R + 1/Qn)^-1
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