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?
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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....
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 ...
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 ...