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33. A wire that is 2.00 m long and carrying a current of 15.0 A is at 90° to a uniform magnetic field. The force acting on the wire is 0.70 N. What is the strength of the magnetic field? A. 0.01 T B. 0.02 T C. 0.03 T D. 0.04 T

33. A wire that is 2.00 m long and carrying a current of 15.0 A is at 90° to a uniform magnetic field. The force acting on the wire is 0.70 N. What is the strength of the magnetic field? A. 0.01 T B. 0.02 T C. 0.03 T D. 0.04 T

College Physics
College Physics
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Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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33. A wire that is 2.00 m long and carrying a current of 15.0 A is at 90° to a uniform magnetic field. The force acting on the wire is 0.70 N. What is the strength of the magnetic field? A. 0.01 T B. 0.02 T C. 0.03 T D. 0.04 T 34. A electron passes through a magnetic field at 60° to the field at a velocity of 3.5 x 10°0/0. What is the magnitude of the force acting on the electron having a 0.45 T magnetic field? C. 2. 18 x 10-12 A. 2. 18 x 1010 B. 2. 18 x 10-11 O D. 2. 18 x 10-13
Transcribed Image Text:33. A wire that is 2.00 m long and carrying a current of 15.0 A is at 90° to a uniform magnetic field. The force acting on the wire is 0.70 N. What is the strength of the magnetic field? A. 0.01 T B. 0.02 T C. 0.03 T D. 0.04 T 34. A electron passes through a magnetic field at 60° to the field at a velocity of 3.5 x 10°0/0. What is the magnitude of the force acting on the electron having a 0.45 T magnetic field? C. 2. 18 x 10-12 A. 2. 18 x 1010 B. 2. 18 x 10-11 O D. 2. 18 x 10-13
37. "Moving the magnet toward or away from the coil." "Moving a current carrying coil toward or away from the coil." Based from these actions, what do they have in common? A. All these actions are in a closed circuit. B. All these actions do induce a current in a coil. C. All these actions were supported by stationary motion. D. All these actions used magnets to move the galvanometer to another place. 38. A magnetic field B= 0.6T is directed upward through a circular loop of diameter 7 cm and 500 turns. The loop is initially horizontal, so it is perpendicular to the magnetic field. It rotates through a horizontal axis so that the plane of the loop is at 74° with the horizontal axis within 1 second. What is the magnitude of the induced emf? A. -18.18 V B. -15.3 V C. 16.4 V D. 17.6 V
Transcribed Image Text:37. "Moving the magnet toward or away from the coil." "Moving a current carrying coil toward or away from the coil." Based from these actions, what do they have in common? A. All these actions are in a closed circuit. B. All these actions do induce a current in a coil. C. All these actions were supported by stationary motion. D. All these actions used magnets to move the galvanometer to another place. 38. A magnetic field B= 0.6T is directed upward through a circular loop of diameter 7 cm and 500 turns. The loop is initially horizontal, so it is perpendicular to the magnetic field. It rotates through a horizontal axis so that the plane of the loop is at 74° with the horizontal axis within 1 second. What is the magnitude of the induced emf? A. -18.18 V B. -15.3 V C. 16.4 V D. 17.6 V
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