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The coil shown in the figure below is wound across a solenoid that produces a magnetic field given by B = (4.0 + (3.0 s^-2)t²) Tesla. The solenoid has a cross-sectional area of 0.20 m²

a. What is the direction of the induced current in the resistor?

b. What is the potential difference, V1 - V2, at t = 3.0 s?

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