Physics Paper 61 (Varient 1 Paper) Electricity

[Adahshan]

Ahmed NES, yes correct.

 

[xIshtar]

Gunner is right. It's total.

R1*R2/R1+21 won't work, It has to be done totally, both added.. 11. something and the other resistance was 8.26 or something.

Agreed, I ended up with a 3.11 difference between them, which I used for the question below. I'm sure 11.3 or 11.4 will be accepted, because my friend rounded to 3sf both times xD.

 

[jhoseftarek]

 

[Arcticmonkey]

all you had to do is add the two values nothing complex, i would have thought if it was anything but that they wouldve given u the formula

 

[Chemguy]

all you had to do is add the two values nothing complex, i would have thought if it was anything but that they wouldve given u the formula

true, that's where i fucked up :|