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Np=100
Vp=240V
Vs=12V
ditanya:
Ns?
jawab:
Vp/Vs = Np/Ns
240/12 = 100/Ns
20 = 100/Ns
Ns= 100/20 = 5
vp=240v
vs=12v
ns?
vp/vs=np/ns
240/12=100/ns
240ns=12×100(dikali silang)
240ns=1200
ns=1200÷240
ns=5