# Flux and Emf

###### Question:

In Figure 30-54, two straight conducting rails form a rightangle. A conducting bar in contact with the rails starts at thevertex at time t = 0 and moveswith a constant velocity of5.90 m/s along them. A magnetic fieldwith B = 0.350 T is directed out of the page.

Fig. 30-54

(a) Calculate the flux through the triangle formed bythe bars at t = 3.60 s.
Wb
(b) Calculate the emf around the triangle at that time.
V
(c) If the emf is =atn, where a and n areconstants, what is thevalue of n?

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