40.64 cm is the answer to your question.
A soft metal core made into a magnet by the passage of electric current through a coil surrounding it.
Answer:
If it was close we would die.
Explanation:
Probably has something to do with the earths original formation.
Answer:
Explanation:
N=Rotor Speed in Revolution per minute(rpm)
for P=4 and N=3600, f comes out to be 120 Hz.
So frequency of voltage produced is 120 Hz. But this is not practical. Generally 4-Pole generator has N=1500rpm(for 50 Hz) or 1800rpm for 60 Hz. Two pole generator can have N=3600rpm(f=60Hz).
The most practical situation is generator having N=3600Hz with 2 Poles.
Hope It will be helpful!!!