At what distance (in mm) from a long, straight wire carrying a current of 28 A will the magnitude of the magnetic field be 3.0 mT?
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At what distance (in mm) from a long, straight wire carrying a current of 28 A will the magnitude of the magnetic field be 3.0 mT?
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- An electric device delivers a current of 4 A to a device. How many electrons flow through this device in 8 s? (e = 1.60 x 10-19 C) At what distance, in centimeters, from the central axis of a long straight thin wire carrying a current of 5.0 A is the magnitude of the magnetic field due to the wire equal to the strength of the Earth's magnetic field of about 5.0 x 10-5 T? (HO = 47 x 10-7 T m/A) %3DAt what distance (in mm) from a long, straight wire carrying a current of 20 A will the magnitude of the magnetic field be 1.9 mT?What is the magnitude of the magnetic field (in nT) at a distance of 4 m from a long straight wire which carries a current of 14 A? (in units of nT or nanoteslas)
- A long straight wire carries a current of 5.0 A. Find the magnitude of the magnetic field at a distance of 10.0 cm from the center of this wire.In a lightning bolt, 12 C of charge flows in a time of 5.7 x 10-3 s. Assuming that the lightning bolt can be represented as a long, straight line of current, what is the magnitude of the magnetic field at a distance of 29 m from the bolt?Two long parallel wires 79.4 cm apart are carrying currents of 12.6 A and 28.1 A in the opposite direction. What is the magnitude of the magnetic field halfway between the wires?
- Q1: (a) A 0.750 m long section of cable carrying current to a car starter motor makes an angle of 60° with the Earth's magnetic field 5.50 x 10T. What is the current when the wire experiences a force of 7.00 x 103 N? (b) If you run the wire between the poles of a strong horseshoe magnet, subjecting 5.00 cm of it to a 1.75 T magnetic field, what force is exerted on this segment of wire?A metal rod of 2.50m long stands vertically near the earth’s equator carrying a current of10.0A away from the ground. The earth’s magnetic field at the location has a magnitude of 0.500 10 to negative 4th power Tand points directly to the north. (a) what is the smallest angle between the current inthe rod and the magnetic field of Earth at that location? (b) What is the magnitude of the magneticforce on the rod? (c) What is the direction of the magnetic force on the rod?