A conducting rectangular loop of dimensions a and b has a resistance 'R'. It is placed in a magneti…

A conducting rectangular loop of dimensions a and b has a resistance #x27;R #x27;. It is placed in a magnetic field of strength #x27;B #x27; as shown in the figure. The direction of B is perpendicular to the plane of the loop. If the magnetic field quickly drops uniformly to zero over t seconds, the rate of change of B is (-B/T). Find the magnitude of the average current induced in the loop. What is the direction of the current? Explain your reasoning. If instead, the shape of the loop is changed from a rectangle to a square with side #x27;5a #x27;, keeping the magnetic field constant, find the magnitude of the average current induced in the loop. Assume the entire process occurred steadily over t seconds. The rate of change of the area is (Ac - A)T. What is the direction of the current? Explain your reasoning.

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