PG1995
Active Member
Hi, ![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
1: https://img19.imageshack.us/img19/2256/nodaldiagram1.jpg (diagram of circuit and few other details)
2: https://img36.imageshack.us/img36/5405/nodaldiagram2.jpg (solution)
The book asks "Find the magnitude and polarity of the voltage across each resistor".
I was trying to find the magnitude and polarity across R3 in the circuit diagram (please have a look on the link #1).
The values for V1 and V2 are correct. V1 is -14.9v, and V2 is -12.7v. The magnitude for voltage across R3 I found was 14.8v, but the book says it's 9.71v.
I4 is -3.7A (the assumed direction by me was from left to right of screen as is shown in the scan).
The book also says: V_R3 = V1 + 12 -V2. I don't get this step. Is the book applying KVL here, then how. Please help me with this. Many thanks for the help.
Cheers
1: https://img19.imageshack.us/img19/2256/nodaldiagram1.jpg (diagram of circuit and few other details)
2: https://img36.imageshack.us/img36/5405/nodaldiagram2.jpg (solution)
The book asks "Find the magnitude and polarity of the voltage across each resistor".
I was trying to find the magnitude and polarity across R3 in the circuit diagram (please have a look on the link #1).
The values for V1 and V2 are correct. V1 is -14.9v, and V2 is -12.7v. The magnitude for voltage across R3 I found was 14.8v, but the book says it's 9.71v.
I4 is -3.7A (the assumed direction by me was from left to right of screen as is shown in the scan).
The book also says: V_R3 = V1 + 12 -V2. I don't get this step. Is the book applying KVL here, then how. Please help me with this. Many thanks for the help.
Cheers