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30 cm х 25 cm xxx x xx X X X Question 10 (10 points): As shown in the figure, a loop of wire with 30 turns and 40- resis
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30 cm х 25 cm xxx x xx X X X Question 10 (10 points): As shown in the figure, a loop of wire with 30 turns and 40- resis
30 cm х 25 cm xxx x xx X X X Question 10 (10 points): As shown in the figure, a loop of wire with 30 turns and 40- resistance is in the shape of a rectangle 30 cm by 25 cm. A uniform but non-steady magnetic field is directed into the plane of the circuit. The magnitude of the magnetic field is decreased from 1.55 T to 0.40 T in a time interval of 70 ms. (a) What is the magnitude of the induced emf? (b) What is the magnitude and direction of the induced current through the resistor (between a and b points)? Solution: х www 40 Ω
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