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shikiaanthony
23.08.2019 •
Physics
A7.3 cm diameter loop of wire is initially oriented so that its plane is perpendicular to a magnetic field of 0.61 t pointing up. during the course of 0.13 s the field is changed to one of 0.28 t pointing down. what is the magnitude of the induced emf in the coil in mv?
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Ответ:
induced emf = 28.65 mV
Explanation:
given data
diameter = 7.3 cm
magnetic field = 0.61
time period = 0.13 s
to find out
magnitude of the induced emf
solution
we know radius is diameter / 2
radius = 7.3 / 2
radius = 3.65 m
so induced emf is dπ/dt = Adb/dt
induced emf = A × ΔB / Δt
induced emf = πr² × ΔB / Δt
induced emf = π (0..65)² × ( 0.61 - (-0.28)) / 0.13
induced emf = 0.0286538 V
so induced emf = 28.65 mV
Ответ:
What type of GF?
Explanation: