How To Work Out Voltage Drop Across A Resistor

How would one go about using a 12 V DC power source to power something which needs 4.5 V DC using resistors? Is there a way to determine how much adding a resistor would drop the voltage?

how to work out voltage drop across a resistor 1

Create an account Tip: To use Gmail for your business, a Google Workspace account might be better for you than a personal Google Account. With Google Workspace, you get increased storage, professional email addresses, and additional features. Learn about Google Workspace pricing and plans. Try Google Workspace The username I want is taken

how to work out voltage drop across a resistor 2

If you're having trouble accessing a Google product, there's a chance we're currently experiencing a temporary problem. You can check for outages and downtime on the Google Workspace Status Dashboard.

how to work out voltage drop across a resistor 3

I tried in my Chrome browser and is ok For me. When I try to open in another browser without my account the link don't work. It direct to the main Google Gemini page and nothing more....

how to work out voltage drop across a resistor 4

Created a new google form today and the submit button is grayed out. I opened an older form and the submit button is working fine. I coped this older form and the submit button on the copied form is grayed out. I noticed the old version of the form showed 'send' in the upper right corner of the screen while in owner/edit mode; however, the new form and the copied form now show 'published ...

how to work out voltage drop across a resistor 5

The total voltage you get from one out and back, even with a high temperature difference is pretty small. By putting many of these out and back combinations together, you can get a useful voltage. A single out and back is called a thermocouple, and can be used to sense temperature. Many together is a thermocouple generator. Yes, those actually ...