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17. The magnetic flux through three different coils is changing as shown in
Figure P21.17. For each situation, draw a corresponding graph showing
quantitatively how the induced emf changes with time.
FIGURE P21.17
$(T•m²)
0.4
0.2
0
0
2
4
(T • mỏ)
0.4
0
01234
p(T•mỏ)
+0.2
A
1 2 3
t(s) -0.2
-t (s)

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