| Electronics > Beginners |
| Easy schematic - calculating voltage |
| (1/1) |
| nForce:
How to calculate voltage in the node point (blue)? If the resistors had all equal value then it would be just the average voltage of all voltage sources. |
| mvs:
--- Quote from: nForce on November 15, 2018, 05:41:07 pm ---How to calculate voltage in the node point (blue)? --- End quote --- Kirchhoff's current law: I1+I2+I3=0 Ohm's law: I1=(U1-U)/R1 I2=(U2-U)/R2 I3=(U3-U)/R3 Calculation: (U1-U)/R1+(U2-U)/R2+(U3-U)/R3=0 (-1.5-U)/100+(0-U)/150+(5-U)/200=0 | x600 (-9-6U)+(-4U)+(15-3U)=0 -13U+6=0 U=6/13=0.4615 V |
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