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Unformatted text preview: V = l v B V is the voltage (in volts) l is the length of wire in the magnetic field (in metres) v is the velocity of the wire moving through the field (in m/s) B is the strength of the magnetic field (in teslas) Example: An airplane is flying at 1000km/h through an area where earths magnetic field is 5.0 x 105 T and nearly vertical. What is the potential difference induced between the wing tips which are 70m apart? Remember to change the velocity into metres per second before doing any calculations v = 1000 km/h = 280m/s V = l v B V = (70m)(280m/s)( 5.0 x 105 T) = 1.0V Which isnt much, but it must be taken into account when designing the plane....
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 Fall '08
 RABE
 Physics, Force

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