Who can help me with my physics homework?
Hi, I've been given some homework, but I don't know how to do it. The question is how the brightness of the lights changes if an additional light is inserted in place of positions a/b. Please explain.
Parallel connection of current and resistance?
Hello, a basic question. In the following parallel circuit, I1, I2, I3, and R1, R2, R3 are initially equal. If R2 were increased, I2 would decrease. But wouldn't Itotal also decrease as a consequence, since Itotal = I1 + I2 + I3?
Is a high voltage with a very low current dangerous?
I once read that voltage is not what causes damage to the body, but rather current (amperage). It's true that the higher the voltage, the more current flows, and therefore the more dangerous it is. Based on the I=U/R formula. But what about alternating current, which uses a transformer to increase the voltage and reduce…
Multiple guitar effect pedals on one power supply?
I wanted to connect my distortion pedal with 9V and 1A, my noise gate with 9V and 500 mA, and my wha pedal with 9V to one power supply, since I don't want to use a separate power outlet for each pedal. What do I need to consider regarding the current?
How can I replace fluorescent tubes?
How can I replace the fluorescent tubes? The one above our sink—it's an older kitchen—was flickering constantly, blinking back and forth. How can I replace it? The lamp is still on, although it produces very dim light, but the light quality is severely limited.
Logitech g29 steering wheel ordered on Amazon without cable?
Hello everyone, I ordered a G29 steering wheel which isn't here yet and now it's arrived. I bought it as a return from Amazon, but after ordering I read that it doesn't include a power supply. The steering wheel has an input of 24V and 1.75A. My question is, would it be bad if I…
How much V on digital pin?
Hi, how many volts does the Arduino output on a digital pin? Uno and Giga, please. Thanks
Current on 5v pin?
How much current does the Arduino Uno output on the 5V pin? I power the Arduino with a 9V battery, except when programming with the USB cable. And does anyone know what happens with the Giga when I connect it to the USB-C port via a power adapter? The power adapter delivers a maximum current…
How much power does Arduino use?
Hi, I'm currently planning and soon building a cocktail machine with an Arduino Giga. I need eight pumps for it, as there are eight basic ingredients. To buy the right pumps, I need to know how much current the Arduino outputs, i.e., in V and Ampere. Perhaps someone can even send me a link to…
Can someone help me with these physics problems?
Hello can someone help me to solve A4, A5, A7 and A8 I don't understand anything