Hi, In the first tutorial "Simulate an LED and Resistor" after the circuit is completed and I check the voltage after the LED it shows that the Direct current voltage is zero (0). Why is that? Why there is no voltage in the circuit at that point? |
by AbdulRahim_Electronics
August 29, 2021 |
Many possibilities. You may have an error because the loop is not completed. When that happens, you should have an error message when you try to run the simulation. Sometimes you can detect such "connection fault" by dragging a component (the source, the resistor, or the LED, here) and if really connected, the "wires" will follow. If they don't, you have the faulty wiring. Try to reinsert the faulty wire. Now, when you speak of "the current voltage is zero", you mean "the actual voltage is zero"? A VOLTAGE, in volt or milli-volt, is not a CURRENT, in ampere, or milliamp. A wire, in an uncompleted loop, but with the wire connected to the + side of a dc source will have a voltage equal to the voltage of the source but would have no current passing through it (if we neglect thermal effects). |
by vanderghast
August 30, 2021 |
No answers yet. Contribute your answer below!
You must log in or create an account (free!) to answer a question.
Anyone can ask a question.
Did you already search (see above) to see if a similar question has already been answered? If you can't find the answer, you may ask a question.
CircuitLab's Q&A site is a FREE questions and answers forum for electronics and electrical engineering students, hobbyists, and professionals.
We encourage you to use our built-in schematic & simulation software to add more detail to your questions and answers.
Acceptable Questions:
Unacceptable Questions:
Please respect that there are both seasoned experts and total newbies here: please be nice, be constructive, and be specific!
CircuitLab is an in-browser schematic capture and circuit simulation software tool to help you rapidly design and analyze analog and digital electronics systems.