A Metal Blade Spins at a Constant Rate of 5 $\mu$

question 15

Multiple Choice

A metal blade spins at a constant rate of 5.0 revolutions per second about a pivot through one end of the blade.This rotation occurs in a region where the component of the Earth's magnetic field perpendicular to the blade is 30 $\mu$ T.If the blade is 60 cm in length, what is the magnitude of the potential difference between its ends?

• A)0.24 mV
• B)0.20 mV
• C)0.17 mV
• D)0.27 mV
• E)0.34 mV

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