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V Part A Two high-current transmission lines carry currents of 28.0 A and 73.0 A in the same direction and are suspended parallel to each other 39.0 cm apart. If the vertical posts supporting these wires divide the lines into straight 19.0 m segments, what magnetic force does each segment exert on the other? AEQ ? F = N Submit Request Answer V Part B Is the force found in part (A) attractive or repulsive? It's is attractive. Submit Previous Answers Correctv PartA A solenoid contains 785 coils 0! very thin wire evenly wrapped over a length of 19.0 cm . Each coil is 2.50 cm in diameter. I . . I If this solenOId carries a current of 7.25 A , what Is the magnetic field at its center? Impno? Muest Answer Part A An ion having charge +6e is traveling horizontally to the left at 8.60 km /s when it enters a magnetic field that is perpendicular to its velocity and deflects it downward with an initial magnetic force of 6.84x10-15 N . V Part B What is the magnitude of this field? VO AEQ ? B = 82.74 . 104 T Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Provide FeedbackA 'Be nucleus containing four protons and five neutrons has a mass of 1.50x10-26 kg and is traveling vertically upward at 1.80 km/s . V Part B If this particle suddenly enters a horizontal magnetic field of 1.20 T pointing from west to east, find the magnitude of its acceleration vector the instant after it enters the field. ? a = 9.984 . 1010 m/$2 Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remainingA straight vertical wire carries a current of 1.60 A downward in a region between the poles of a large electromagnet where the field strength is 0.580 T and is horizontal. Part B What are the magnitude of the magnetic force on a 1.20 cm section of this wire if the magnetic-field direction is toward the east? AEd ? F . N Submit Request Answer Part C Part D What are the magnitude of the magnetic force on a 1.20 cm section of this wire if the magnetic-field direction is toward the south? IVAEQ F = N Submit Request Answer Part E What are the direction of the magnetic force on a 1.20 cm section of this wire if the magnetic-field direction is 30.0 south of west ? Please, enter your answer as an angle's value north of west. CE ? Submit Request Answer Part F What are the magnitude of the magnetic force on a 1.20 cm section of this wire if the magnetic-field direction is 30.0 0 south of west ? AEd F = N Submit Request AnswerPart A In a conventional cheap flashlight, a straight copper strip runs along the tube of the flashlight to connect the bulb to the negative terminal of the battery at the bottom of the tube. If this strip carries a current of 0.69 A while you're holding the flashlight, what is the magnitude of the magnetic field at the surface of your hand, 0.35 cm from the strip? (You can treat the strip as a long, thin, straight wire.) Express your answer to two significant figures with the appropriate units. B = Value Units Submit Request Answer Part B How does your answer compare to the earth's magnetic field? These values has the same order. O This value is significantly larger than the earth's magnetic field. This value is significantly smaller than the earth's magnetic field. Submit Request AnswerV Part A A long, straight telephone cable contains six wires, each carrying a current of 0.300 A . The distances between wires can be neglected. If the currents in all six wires are in the same direction, what is the magnitude of the magnetic field 2.50 m from the cable? AED ? Templates B1= T Submit Request Answer Part B If four wires carry currents in one direction and the other two carry currents in the opposite direction, what is the magnitude of the field 2.50 m from the cable? AEd ? B2 = TPart A Two long, straight parallel wires are 10.0 cm apart and carry 3.40 A currents in the same direction (see the figure (Figure 1)). V Part B Find the magnitude of the magnetic field at point P1, midway between the wires. ? B1 = T Submit Request Answer Part C Part D Find the magnitude of the magnetic field at point P2, 35.0 cm to the right of P1. AEd B2 = T Figure