 #1
 48
 0
Homework Statement
A circuit composed of one battery and four resistors is arranged as shown in the attached pic.
E = 19 V
R1 = 12 W
R2 = 2 W
R3 = 15 W
R4 = 2 W
Calculate the current I1 through R1?
Homework Equations
V=IR (obviously)
The Attempt at a Solution
first i got the net current in this circuit by doing the following..
i summed resistors in series to get 14ohm on first loop and 17ohm on second loop.
then i applied resistance in parallel rule :
Req = (1/R1) + (1/R2)
= 7.69ohm = Rtotal
then I = V/R = 2.47A = total current in the circuit.
Then to get the current on the 14 ohm loopm i multiplied 2.47 by (14/17) . ( i think this is where I am erring, but cant see why this doesnt work??)
= 2.03A (wrong)
thanks for any help!
Homework Statement
Homework Equations
The Attempt at a Solution
Homework Statement
Homework Equations
The Attempt at a Solution
Attachments

1 KB Views: 391