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Verified answer
INDUKSI ELEKTROMAGNETIK• Transformator
η = 80% = 0,8
Pₚ = 200 W
Vₛ = 40 V
iₛ = ___?
η = Pₛ / Pₚ
η = Vₛ iₛ / Pₚ
0,8 = 40 iₛ / 200
40 iₛ = 0,8 × 200
iₛ = 0,8 × 5
iₛ = 4 A ✔️
arus sekundernya 4 A.