problems_34

# problems_34 - PHY2061 R D Field Chapter 34 Problems Problem...

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PHY2061 R. D. Field Problems Chapter 34 Page 1 of 4 Chapter 34 Problems Problem 1: A long straight wire carries current I . Nearby and lying in the same plane is a circular loop, as shown in the Figure . If the loop is moved toward the wire, what will be the direction of the current induced in the loop (if any) and what will be the direction of any electromagnetic force exerted on the loop? Problem 2: A magnetic field given by B(t) = at+b with a = 1 T/s and b = -1 T is directed perpendicular to the plane of a circular coil of 10 turns and radius 0.2 m . If the coil’s total resistance is 1.58 Ohms , how much power ( in Watts ) is dissipated at time t = 1 s ? Problem 3: A 25-turn coil of resistance 3 Ohms has area of 8 cm 2 . Its plane is perpendicular to a magnetic field given by B(t) = 0.4t - 0.3t 2 (where B is in Tesla and t is in seconds). What is the induced current in the coil ( in milliA ) at t = 1 second ? Problem 4: A uniform time dependent magnetic field given by B(t) = at 2 with a = 0.3 T/s 2 is directed perpendicular to the plane of a square wire loop with sides

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## This note was uploaded on 05/31/2011 for the course PHY 2061 taught by Professor Fry during the Spring '08 term at University of Florida.

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problems_34 - PHY2061 R D Field Chapter 34 Problems Problem...

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