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SampleQuiz4 - Name Class Date ID A Quiz 4 Multiple Choice...

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Name: ________________________ Class: ___________________ Date: __________ ID: A 1 Quiz 4 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 1. Two 115 V power lines, each carrying 100 A to the east, are 40 cm apart. The force per meter between the lines is: a. 5.0 × 10 -5 N b. 1.0 × 10 -4 N c. 5.0 × 10 -3 N d. 1.0 × 10 -2 N e. None of the above ____ 2. A 10 cm long solenoid has 500 turns of wire and is designed to cancel the Earth's magnetic field (2.5 × 10 -5 T) at its center. The current required is: ____ 3. A 2.0 m long straight metal wire having a resistance of 2.0 is connected to a 12 V battery. The magnitude of the B- field 1.5 cm away in air is: ____ 4. A rectangular coil, 6.0 cm × 5.0 cm, with 200 turns lies in a magnetic field of strength 0.80 T. If the maximum torque exerted on the coil is 0.48 N • m, the current in the coil is: ____
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