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Transcribed Image Text:Problem 7.8 A square loop of wire (side a) lies on a table, a distances from a very
long straight wire, which carries a current I, as shown in Fig. 7.18.
a
a
FIGURE 7.18
(a) Find the flux of B through the loop.
(b) If someone now pulls the loop directly away from the wire, at speed v, what
emf is generated? In what direction (clockwise or counterclockwise) does the
current flow?
(c) What if the loop is pulled to the right at speed v?
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