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In a series circuit (loads connected in a row end to end), it's easy to calculate total circuit resistance because you simply add up all the resistances to get the total.
In a parallel circuit, the voltage is the same across all the loads; the amperage is simply added up, but the resistance is a bit trickier.
You know the feeling that sets in your chest before you finish reading that nine-word text:
Hey you got a minute? I need some help.
No details. No system description. Just that, from someone who doesn’t send that text unless they’ve already exhausted everything else.
Let’s talk about that feeling.
What’s ...
The amount of pressure you're under depends on where you live. I live in Florida, so I'm very close to sea level. Therefore, the weight of the atmosphere is exerting exactly 14.7 pounds per square inch (PSIA) of pressure on every surface in every direction.
There is no such thing as negative pressure—only pressure lower than the atmospheric baseline
When I was a green tech, I was really big into showing up all the other techs by doing THE BEST cleaning I possibly could. One of my favorite things to do was to clean the condenser until it was SPOTLESS inside and out. The only issue was that I really liked using that brown coil cleaner—which will remain nameless—in pretty intense concentrations. (It was so ...
Does setting a thermostat too low cause an air conditioning system set in cool mode to freeze?
The answer is no, at least not directly.
However, low evaporator load (low return temperature or low airflow) and low outdoor ambient temperature can lead to evaporator coil freezing. Low indoor setpoint can lead to low return air ...