Short Circuit Problem (Physics)
posted by Eileen on .
Thanks so much for all your help damon!
I think this is my last one:
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The reading of the ammeter is 2 A. The reading of the voltmeter is 33 V. Determine the unknown resistance and emf (picture linked above remove spaces).

emf sets top most node to emf V.
Nodal at top node:
(emf  V)/5 = 2A
=> emf = 43V
ohms law at top node:
(43V  33V)/12 = Current right branch = 0.83A
Current in left branch = A + 0.83 = 2.83A
R = 33/2.83 = 11.66 Ohms
Although, this question is a little odd because there's no ground. 
ty so much dan!

No problem ^^