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Homework Statement
Calculate the value of the current through the 12V battery shown in figure (attached).
Homework Equations
V = IR
I1 = I2 + I3
The Attempt at a Solution
I've calculated the current for the left hand loop, see below:
Loop 1:
E_1 E_2 V_1 V_2=0
E_1 E_2= V_1+ V_2
E_1 E_2=I(R_1+ R_2)
1312= I (3+1)
1=4I
1/4=I
I=0.25A
I understand it's a process of doing the same to the right hand side and then subtracting the two sides? I'm just unsure as to when i should be adding the voltages and resistors and when i should be subtracting them.Is it related to the direction of the current and voltage potential? If anyone can help here it would be greatly appreciated. Thanks.
Homework Statement
Homework Equations
The Attempt at a Solution
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