Will it hurt a 4.8 volt DC electric motor if you put 4.5 or lower volts on it?
No. Varying a DC motor's voltage will vary its speed. If your motor is rated for 1000 rpm at 4.8 volts, running it on 4.5 volts should produce something in the area of 937 rpm. It shouldn't be a very noticeable difference, unless the voltage is much lower than the rating.
Yes, if you try to continuously run the motor at 120 volts. It may run, but at a slower speed. The slower speed will not provide enough cooling for the windings, and thus it will eventually be destroyed. No, if you incorrectly wired it at 120 volts, and then rewired it correctly, for the HIGHER 240 volts. Keep in mind that there are many different types of motors out there and this answer only applies…
Why are you unharmed in a science demonstration in which you conduct or carry a 100 000 volts of current and light up fluorescent tubes?
You are unharmed in a science demonstration in which you conduct or carry 100,000 volts of electricity and light up fluorescent tubes because there is normally insufficient current to hurt you. Note that the original question said "volts of current". This is a misunderstanding. Voltage is electric potential, while current is electric flow. The two terms are not the same thing.
I might be wrong, but I believe that electric Pokemon can be hurt with any type of attack, I think even electric attacks, unless the electric Pokemon has volt absorb, which would heal them, or if they were part flying, in which case, they could not be hurt by ground attacks, also if they were part ground, they would be immune to electric attacks.
Electric current of 1 milliamp is barely noticeable. Current of 100 milliamps can be fatal, if it passes through the chest. The resistance of dry human skin can vary between 10,000 and 100,000 ohms. 12 volts can only push 1.2 mA through 10,000 ohms--that's completely harmless. 230 volts can push 23 mA through 10,000 ohms--that will hurt. If the skin is broken or wet, the resistance of the skin can drop to 1,000 ohms. Under…