Answer / saad

The formula of converting kVA to kW:

kW = kVA * P.F (0.8)
kW = 21 * 0.8
kW = 16.8

Answer / bikash kumar

KVA it means K(IR)A.
as current is denoted as ampere(A), R is denoted as ohm.
as power= I2*R in kw
SO , 21(KVA)=21(KIRA) {A=I=CURRENT}
21(KVA)=21(KIRI)
21(KVA)=21(KI2R)
21(KVA)=21(KW)

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