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Verified answer
Diket :ef = 75 %
Ps = 18.000 w
Vp = 4000 v
dit ; Pp & Ip
Jwb :
a # Daya primer
Pp = ( Ps / ef ) . 100%
Pp = ( 18.000 / 75% ) . 100%
Pp = ( 18.000/ 75 ). 100
Pp = 24.000 watt
# Arus primer
Ip = Pp / Vp
Ip = 24.000 / 4000
Ip = 6 A