B = B0 (1- t/T)
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Question
Consider a conducting ring of radius a and resistance R.
Case I We first place the ring in a constant magnetic field B = B0 pointing into the page as shown in the following figure.
a) Calculate the magnetic flux Φ through the ring. Express the answer in terms of the defined parameters in the problem.
Case II Next, we place the ring from part a in a time-varying magnetic field given by:
B = B0 (1- t/T)
b) Calculate the induced emf in the loop
c) Calculate the magnitude of the induced current in the ring.
d) State the direction of the induced current in the ring. Sketch the current and justify your
answer.
e) Calculate the power dissipated due to the resistance of the loop.
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