Positive SSL
    14.素養(4)
A 500Hz
B 1000Hz
C 1500Hz
D 250Hz

f = 1T

f = 10.004 =250 Hz


A 4極
B 6極
C 8極
D 12極

f = PN120

N = 30 × 60 =1800 rpm

60 = P×1800120

P = 4