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Sagot :
Answer:
fem = -0.126 V
Explanation:
Faraday's law is
fem = [tex]- \frac{d \phi}{dt}[/tex]
where the flow is
Ф = B . A = B A cos θ
bold letters indicate vectors.
In this case, the normal to the area is parallel to the magnetic field, so the angle is zero and the cos0 = 1
fem = [tex]- A \ \frac{dB}{dt}[/tex]
in this case they indicate that to carry the loop from outside to inside the field in Δt = 5 s, so we can change them by variations
fem = [tex]- A \frac{\Delta B}{\Delta t}[/tex]
let's calculate
fem = - 0.7 (0.9 -0) / 5
fem = -0.126 V
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