Posted by iza on .
If all 3 resistors in a series 12V circuit are the same, what will the voltage be across resistor no. 3?

Gr 9 Science  physics 
drwls,
4V across each resistor, since they are equal and the sum must be 12 V.

Gr 9 Science  physics 
iza,
Thanks, that's what I thought. Did you happen to see Part 2 of this question? It is: If the current at one corner of the 12V series circuit is 1.0 A, what is the current at corner number three (all three resistors are the same).