lwfrgin
2021-03-09
Two straight conducting rails form a right angle where their ends are joined. A conducting bar in contact with the rails starts at the vertex at time t = 0 and moves with a constant velocity of 6.40 m/s along them, as shown in Figure. A magnetic field with B = 0.350 T is directed out of the page.
a) Calculate the flux through the triangle formed by the bars at t=3.80 s
b) Calculate the emf around the triangle at that time.
c) If we write the emf as
Malena
Skilled2021-03-10Added 83 answers
a)
Uniform B = 0.350 T, magnetic flux is then
Plugging in t= 3.80 s we find
b) The magnitude of the emf is the Faraday's law:
At t=3.80 s, this yields
e=108.7 V
c) Calculation in b shows that n=1
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