The Student Room Group
V = I(r + R)
how do you use this to get r though?
That's as close as i think you can get to a value
thank you so much!
Original post by BlobBlob69
That's as close as i think you can get to a value

but there isn't an option to put I0 and I1
Original post by Rosy monaghan
thank you so much!

hi! what answer did you get?
Reply 7
Original post by anonymouspersona
hi! what answer did you get?
r = (V_1R_0R_1-V_0R_1R_0)/(V_0R_1-V_1R_0) is the correct answer

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