Please help with the following exercise: Given 2 resistors in series R1=10 ohms, R2= 30 ohms, determine the current flowing through the resistors and the voltage across each resistor, if the potential difference across the wire is V=12V. This is how I solved it: The total resistance Req= R1+R2= 40 ohms R = V / i i = V/R = 0.3 A V(R1) = -R1*i = -10*0.3= -3V V(R2) = -R2*i = -30*0.3= -9V Is it correct? Can the voltage be negative? Please help. Thank you.