A rod of mass , resistance
and length
is sitting at rest on
frictionless rails in a magnetic field as shown. At
, the switch
is closed and a voltage
applied across the rails. Find the
velocity of the rod as a function of time from a combination of Newton's
laws, Ohm's law, and Faraday's law. If you are clueless (in spite of
this being a homework problem and very similar to a quiz problem) at
least tell me what all those laws and the terminal velocity are
for most of the credit.