In a region of space where the magnetic field of the earth has a magnitude of 80 $\mu$T and is directed 30 $\degree$ below the horizontal,a 50-cm length of wire oriented horizontally along an east-west direction is moved horizontally to the south with a speed of 20 m/s.What is the magnitude of the induced potential difference between the ends of this wire?
A)0.45 mV
B)0.35 mV
C)0.30 mV
D)0.40 mV
E)0.69 mV

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The Answer of In a region of space where the magnetic field of the earth has a magnitude of 80 $\mu$T and is directed 30 $\degree$ below the horizontal,a 50-cm length of wire oriented horizontally along an east-west direction is moved horizontally to the south with a speed of 20 m/s.What is the magnitude of the induced potential difference between the ends of this wire?
A)0.45 mV
B)0.35 mV
C)0.30 mV
D)0.40 mV
E)0.69 mV

In a Region of Space Where the Magnetic Field of the Earth