A conducting wire formed in the shape of a right triangle with base b = 38 cm and height h = 65 cm and having resistance R = 1.1 Ω, rotates uniformly around the y-axis in the direction indicated by the arrow (clockwise as viewed from above (loooking down in the negative y-direction)). The triangle makes one complete rotaion in time t = T = 1.8 seconds. A constant magnetic field B = 1.1 T pointing in the positive z-direction (out of the screen) exists in the region where the wire is rotating.
1)
What is ω, the angular frequency of rotation?
radians/second
2)
What is Imax, the magnitude of the maximum induced current in the loop?
A
3)
At time t = 0, the wire is positioned as shown. What is the magnitude of the magnetic flux Φ1 at time t = t1 = 0.675 s?
T-m2
4)
What is I1, the induced current in the loop at time t = 0.675 s? I1 is defined to be positive if it flows in the negative y-direction in the segment of length h.
A
5)
Which of the folowing statements about Φo, the magnitude of the flux through the loop at time t = to = 0.45 s, and Io, the magnitude of the current through the loop at time t = to = 0.45 s, is true? Φmax and Imax are defined to be the maximum values these quantites achieve during the complete rotation.
Φo = 0 and Io = 0
Φo = 0 and Io = Imax
Φo = Φmax and Io = 0
Φo = Φmax and Io = Imax
6)
Suppose the frequency of rotation is now doubled. How do Φmax, the maximum value of the flux through the loop, and Imax, the maximum value of the induced current in the loop change?
Φmax and Imax both double
Φmax doubles and Imax remains the same
Φmax remains the same and Imax doubles
Both Φmax and Imax remain the same
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A conducting wire formed in the shape of a right triangle with base b = 38...
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