physics

A horizontal wire carries a large current. A second wire carrying a current in the same direction is suspended below it.Can the current in the upper wire hold the lower wire in suspension against gravity?

1. 👍
2. 👎
3. 👁
1. http://physics.bu.edu/~duffy/semester2/c14_forcewires.html

1. 👍
2. 👎
👤
bobpursley
2. Thanks. Therefore, I think the answer is "yes". Am I right? Anyway, another question is that, under what condition will the lower wire be in equilibrium?

1. 👍
2. 👎

Similar Questions

1. physics 2

A long wire carries a current of 1 ampere.Find the magnitude of the magnetic field 2 meter away from the wire.

2. Physics

A 550 turn solenoid is 15 cm long. The current in it is 33 A. A 3.0 cm long straight wire cuts through the center of the solenoid, along a diameter. This wire carries a 22 A current downward( and is connected by other wires that

3. Physics

A current-carrying wire is oriented at right angles to a uniform magnetic field. If the length of the wire is 0.50 m and it experiences a force of 0.90 N while carrying a current of 4.0 A, what is the strength of the magnetic

4. physics

A uniform horizontal wire with a linear mass density of 0.48 g/m carries a 1.9 A current. It is placed in a constant magnetic field, with a strength of 3.5 10-3 T, that is horizontal and perpendicular to the wire. Neglect the

1. Physics

A 0.50m long wire is carrying a current of 8.0A toward the east. The wire passes through a magnetic field of 0.40T toward the north. What is the force which acts on the wire? What is the direction of the force.

2. phys102

a copper wire has a diameter of 1.02mm,the wire carries a constant current of 1.67A,the density of the free electrons is 8.5X10^28 e/m^3.calculate the current density and drift velocity

3. Physics

A 45-m length of wire is stretched horizontally between two vertical posts. The wire carries a current of 67 A and experiences a magnetic force of 0.15 N. Find the magnitude of the earth's magnetic field at the location of the

4. physics

A wire carries a 15 microampere current. How many electrons pass a given point on the wire in 1.0 ?

1. physic

A long straight horizontal wire carries a current = 3.90 A to the left. A positive 1.00 C charge moves to the right at a distance 1.50 m above the wire at constant speed v = 5000 m/s. What is the magnitude of the magnetic field at

2. college physics

A 4m long copper wire has a diameter of 2mm and carries a current of 10A. Determine the ff: a. current density in the wire b. electric field c. potential difference between the ends of the wire d. resistance of the wire

3. Physics

The force on a wire is a maximum of 6.5E-2 N when placed between the pole faces of a magnet. The current flows horizontally to the right and the magnetic field is vertical. The wire is observed to "jump" toward the observer when

4. Physics

A long, straight wire carries a current of 48 A. The magnetic field produced by this current at a certain point is 6.5 10-5 T. How far is the point from the wire?