Ok I see. There's also a few topics at the end of the chapter that talk about oscilloscopes and alternating current and they briefly mention electric motors. I'll have to cover these topics later so do any of you know any good books that expand on this area covering the concepts of...
The question and answer are from a book, but I think it is saying that you add ice only at the beginning and you stir the water as it is heated but you are not adding anymore ice as it is being heated. My question is, why do you add ice to the water? Is it simply to cool the water to 0 degrees...
Hi everyone,
I just came across an exercise that asks me to explain how I would measure the change of resistance of a metal wire between a temperature of 0º C and 100º C. The answer to the question is below, what I don't understand is why is there a need to put ice in the water bath and the need...
Thanks a lot for the help! One quick question that I came across. If I have a circuit with a battery of 6v and 2 resistors connected in parallel (one is 10 ohms and the other one is 0 ohms) what would be the current across the circuit? I know that the equivalent resistance would be 0 so the...
Hi guys,
Basically I'm studying electricity at high school level and I need recommendation on a decent book that covers the basics on electricity as the official textbook misses a lot of detail and there's limited practice questions. I've been to several libraries but the books I've found, most...
Nope, I'm more of a tennis and nba basketball fan. How would power relate to F1 racing? I've always heard the term horsepower which is equal to 746 Watts but I'm not sure what it represents. Is it simply the amount of jules transmitted per second from the engine to the wheels of the F1 car?
I have to learn the advantages and disadvantages of using wind power, water power and solar power but I'm just curious as to how they would measure power in wind energy. Perhaps its simply the rate at which kinetic energy of the air is converted into electrical energy but I'm not 100% sure
I'm referring to the concept of power, in which scenario will it be important to calculate power? If you can give me a scenario related to mechanical engineering then that would be better :)
If Power = Force x Distance / Time, does that mean that if we apply the same force on 2 objects with different masses and we apply the force across the same distance, the object with the lower mass will have a higher power?. The way I'm looking at this is that the object with the lower mass will...
Okay, but does the weight on the edge have enough downward force to actually make it tilt or would I need to increase it? If it does have enough downward force to make it tilt then surely it is just a matter of seconds until the beam starts tilting and therefore the sum of moments would not...