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INDUKSI EM• GGL induksi
B = 5 sin 20t Wb/m²
A = 100 cm² = 10⁻² m²
N = 50
R = 5 Ω ... spt inikah ?
iₘ = __?
Laju perubahan induksi magnetik
B = 5 sin 20t
dB/dt = 100 cos 20t
——
dB/dt = turunan pertama fungsi B terhadap t
Laju perubahan fluks magnetik
Φ = B A
dΦ/dt = A • dB/dt
A konstan
GGL induksi
ε = - N dΦ/dt
ε = - N A dB/dt
ε = - 50 • 10⁻² • 100 cos 20t
ε = - 50 cos 20t
GGL maksimum terjadi saat cos 20t bernilai -1.
εₘ = 50 V
Kuat arus maksimum
εₘ = iₘ R
50 = iₘ • 5
iₘ = 10 A ✔️
kuat arus maksimum yang timbul pada kumparan sebesar 10 A.