- #1

- 12

- 0

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter lostinhere
- Start date

- #1

- 12

- 0

- #2

Astronuc

Staff Emeritus

Science Advisor

- 20,170

- 3,755

The node just above the 10 V source is -10V with respect to ground, i.e. the negative terminal of the 20V source.

- #3

- 12

- 0

I have this much

Node 1: between the 25k resistor and the 11mA source)

node 2: between the 500 ohm resitor, 10v source, 1k resistor and 500 resistor and the 11mA source

V1: voltage across the 250 resistor

V2: voltage arcross the 1k resistor

reference node at the bottom of the pic

node1: (V1-20)/25K+V1/250+.011+(V1-V2)/500=0

node2: -.011+V2/1000+(V1-V2)/500+......=0

I'm not quite sure how to hande the 10v supply.

Node 1: between the 25k resistor and the 11mA source)

node 2: between the 500 ohm resitor, 10v source, 1k resistor and 500 resistor and the 11mA source

V1: voltage across the 250 resistor

V2: voltage arcross the 1k resistor

reference node at the bottom of the pic

node1: (V1-20)/25K+V1/250+.011+(V1-V2)/500=0

node2: -.011+V2/1000+(V1-V2)/500+......=0

I'm not quite sure how to hande the 10v supply.

Last edited:

- #4

- 12

- 0

..................nvm

- #5

berkeman

Mentor

- 61,375

- 11,896

There's only one unknown -- the voltage V1. Call the bottom rail ground, then you only have to solve for V1 to know all the voltages and currents in the circuit. The V2 is just -10V, set by the voltage source on the right.lostinhere said:I have this much

Node 1: between the 25k resistor and the 11mA source)

node 2: between the 500 ohm resitor, 10v source, 1k resistor and 500 resistor and the 11mA source

V1: voltage across the 250 resistor

V2: voltage arcross the 1k resistor

reference node at the bottom of the pic

node1: (V1-20)/25K+V1/250+.011+(V1-V2)/500=0

node2: -.011+V2/1000+(V1-V2)/500+......=0

I'm not quite sure how to hande the 10v supply.

The answer for V1 is a nice round number (hint), and you can check your work by using that answer to figure out the 3 unknown currents flowing in/out of the V1 node. They should sum to zero, or you didn't solve your node 1 equation above correctly.

Post the answer!

- #6

- 16

- 0

its so easy and so basic...my professor gives us too complicated circuits..

Share: