Hey this is pretty simple but I'm just not getting it. I'm sorry if I sound really dumb, but I have the following questions:
1. What exactly is power factor? If the question says the power dissipated is 25% of the power supplied, what do we take the power factor to be? 0.25? And if it says that the power consumed is 25% then?
2. if a bar magnet falls freely vertically and passes through a copper ring in its path; but the ring is cut (ie it has a gap), then will emf be induced in the coil?
I'd really appreciate any help anyone could give me!
1. What exactly is power factor? If the question says the power dissipated is 25% of the power supplied, what do we take the power factor to be? 0.25? And if it says that the power consumed is 25% then?
2. if a bar magnet falls freely vertically and passes through a copper ring in its path; but the ring is cut (ie it has a gap), then will emf be induced in the coil?
I'd really appreciate any help anyone could give me!