he induced emf in the circuit.
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![4. A square circuit has 2 m sides and is perpendicular to a uniform
magnetic field, with half the area of the loop in the field, as
shown. The loop contains a 9 V voltage source. The magnitude
of the magnetic field varies with time, with B = 6 + 5t, where
B is the field strength in teslas and t is the time in seconds.
(a) Determine the value of the induced emf in the circuit.
(b) Which way does the overall current flow in the circuit, clockwise or counter-clockwise? Or is
the current zero? Explain why your answer is correct.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F87c87051-b420-4e10-bb8c-91f92ca7e867%2Fdbf544bd-c165-4e75-9857-2c1c67a8717f%2Fidg8n6_processed.jpeg&w=3840&q=75)
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