Explain why two parallel wires carrying currents in opposite directions repel each other.
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- Two long parallel wires that are 0.30 m apart carry currents of 5.0 A and 8.0 A in the opposite direction. Find the magnitude of the force per unit length that each wire exerts on the other wire and indicate if the force is attractive or repulsive. (μ0 = 4π × 10-7 T ∙ m/A) A) 2.7 × 10-5 N repulsive B) 7.2 × 10-5 N repulsive C) 3.4 × 10-5 N attractive D) 2.7 × 10-5 N attractive E) 7.2 × 10-5 N attractiveAn electron with a kinetic energy of 1.04 x 104 eV is initially moving south in a uniform magnetic field of magnitude 488 G, directed east. Describe in detail the electron's trajectory, including its shape and orientation. the radius of the path direction of initial force shape of trajectoryTwo long straight wires carrying equal currents are perpendicular to one another (they are insulated). Describe the forces between them? If the wires are free to move which way do they move due to this force?
- Four separate configurations of current-carrying wires are shown. All points are equidistant with respect to the wires. At which point is the magnitude of the magnetic field the greatest?A magnet can exert a force on a moving charged particle, but it cannot change the particle’s kinetic energy. Why not?If the potential difference over a length of copper wire is 1.5 V, how long must the copper wire be so that when placed in the magnetic field of the Earth at the equator, the copper wire will levitate? In which direction (North, South, East, or West) must the current flow in the wire in order to pull off this trick? Can this be done at the North or South Pole?
- Two long, straight wires are parallel and 5 cm apart. One carries a current of 2.0 A, the other a current of 5.0 A. If the two currents flow in opposite directions, what is the magnitude and direction of the force per unit length of one wire on the other? a) 4.00e-5 N/m Away from each other b) 1.67e-5 N/m Towards each other c) 4.00e-5 N/m Towards each other d) 1.67e-5 N/m Away from each otherTwo 1.0 meter long wires are placed 25 cm apart and lay parallel to each other on a table. A 0.5 Amp current is flowing through each wire in the opposite direction. Explain what will happen to the two wires and why. Calculate the magnitude of the force on each wire. (10 pts)