One hundred turns of (insulated) copper wire are wrapped around a wooden cylindrical core of cross-sectional area 7.69 × 10-3 m2. The two ends of the wire are connected to a resistor. The total resistance

One hundred turns of (insulated) copper wire are wrapped around a wooden cylindrical core of cross-sectional area 7.69 × 10-3 m2. The two ends of the wire are connected to a resistor. The total resistance in the circuit is 17.4 Ω. If an externally applied uniform longitudinal magnetic field in the core changes from 2.27 T in one direction to 2.27 T in the opposite direction, how much charge flows through a point in the circuit during the change?

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