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December 20, 2014

Homework Help: PHYSICS

Posted by MPHO on Tuesday, May 1, 2012 at 12:51am.

A 5.0 cm diameter coil of 20 turns with a resistance of 0.50 Ù is in a time-varying magnetic field which is perpendicular to the coil and is given by the expression;
B = 0.010t2 + 0.020t, where B is in tesla and t is in seconds.
a) Draw a graph of B as a function of time from t = 0 s to t = 10 s.
b) Write down an expression for the induced current I(t) as a function of time.
c) Evaluate I at t = 5 s and t = 10 s.

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