Recent content by vearnwong

Thanks a lot on the poles. That really clears things up. About induced current, I'm still in a haze. I understand what you mean by passing on the energy as in the principle of conservation of energy, what I'm wondering about is does the changing magnetic field somehow able to cause an...

Hello, I know the magnetic field produced by a direct current flowing through a solenoid has a north and south pole, so how about the magnetic field produced by a current flowing through a straight conductor, does it have a north and south pole too? If it have them, where is it located? A...