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7. A 200 turn, 4.0 cm diameter solenoid is placed in a magnetic field of
0.45 T pointing into the page. The solenoid has resistance 4.0 2. The
magnetic field reverses in direction in 0.22 s while maintaining its
magnitude.
X X X X
X,
a. What direction is the induced current?
X X X X
b. What is the magnitude of the induced current?

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