Magnetic Resistance
A current loop with a resistance R = 522 and an area A = 0.28 m2 is oriented perpendicular to a magnetic fiel?
A current loop with a resistance R = 522 and an area A = 0.28 m2 is oriented perpendicular to a magnetic field that varies in time as sketched in the figure. What is the current induced in the loop at t = 0.30 s? (Hint: You can express the magnetic field in the form B=B0sin(2 f*t).)
Also, at 0.3s B(T)=about .375. Other coordinates: (0,0), (.5, .5), and (1,0), with the y-axis being B(T) and the x-axis being time.
A current loop with a resistance R = 522 and an area A = 0.28 m2 is oriented perpendicular to a magnetic field that varies in time as sketched in the figure. What is the current induced in the loop at t = 0.30 s? (Hint: You can express the magnetic field in the form B=B0sin(2 f*t).)
Faraday’s law says that voltage is proportional to the rate of change of magnetic flux BA,
V = – d(BA) / dt = – Bo A 2pi cos(2pi f t)
Ohm’s law says that
V / I = R –> I = V / R = – (Bo A / R) 2pi cos(2pi f t)
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