Forums » General Electronics Discussion

I am in an introductory college physics class, and am trying to use the CircuitLab simulator to help me better understand some of the laboratory components. The easiest way is to look at the brightness of light bulbs in series and in parallel.

Here I have constructed a circuit: https://www.circuitlab.com/circuit/d23en9/bulb-brightness/

Basically, I am trying to find out the relative current through each bulb. How do I proceed from here?

@devon11,

Welcome to CL.

1) To run a simulation, you must add a ground symbol somewhere in the circuit.

On the negative rail would be the expected place in a simple single supply circuit like yours.

2) Then set up a simulation.

You can usefully run a DC, DC Sweep or Time Domain simulation on your circuit.

https://www.circuitlab.com/docs/the-basics/#dc_simulation

https://www.circuitlab.com/docs/the-basics/#dc_sweep_simulation

https://www.circuitlab.com/docs/the-basics/#time_domain_simulation

Then you can plot some output values.

https://www.circuitlab.com/docs/the-basics/#plotting_outputs

There are many, many examples of these sims in CL.

https://www.circuitlab.com/circuit/nu8w4b/sweeping-a-voltage-source-demo-01/

Please search for more using the search box at the top of the page.

:)