Consider a circular loop of wire.  The loop is threaded by a constant 2 T magnetic field that is normal to the loop.  The radius of the loop is fluctuating according to the equation r(t) = a + b cos(w t), where a = 2 m, b = 0.49 m, and w = 197 rad/s.  Calculate the induced EMF in the loop at t = 7 s, in V. (Please answer to the fourth decimal place - i.e 14.3225)

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Consider a circular loop of wire.  The loop is threaded by a constant 2 T magnetic field that is normal to the loop.  The radius of the loop is fluctuating according to the equation r(t) = a + b cos(w t), where a = 2 m, b = 0.49 m, and w = 197 rad/s.  Calculate the induced EMF in the loop at t = 7 s, in V.

(Please answer to the fourth decimal place - i.e 14.3225)

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