Question

In: Physics

A long horizontal conducting wire carries current due east. It is place into very strong magnetic...

A long horizontal conducting wire carries current due east. It is place into very strong magnetic field and as result it levitates. What is direction of magnetic field?

a. North

b. South

c. Up

d. Down

e. East

f. West

Solutions

Expert Solution

Problem is solved using basic formula of force on a current carrying wire in a magnetic field and fundamental of cross vector product.


Related Solutions

An infinitely long wire carries current I. Find the magnetic field due to this current. Find...
An infinitely long wire carries current I. Find the magnetic field due to this current. Find the vector potential A. Verify that your vector potential from part b produces your answer to part a.
A long, horizontal wire AB rests on the surface of a table and carries a current...
A long, horizontal wire AB rests on the surface of a table and carries a current I. Horizontal wire CD is vertically above wire AB and is free to slide up and down on the two vertical metal guides C and D (the figure ). Wire CD is connected through the sliding contacts to another wire that also carries a current I, opposite in direction to the current in wire AB. The mass per unit length of the wire CD...
7. A very long straight wire carries a 12-A current eastward and a second very long...
7. A very long straight wire carries a 12-A current eastward and a second very long straight wire, 42 cm below the first wire, carries a 14-A current westward. The wires are parallel to each other. Calculate the total magnetic field halfway between the wires. Include the direction.
A very long thin wire carries a current I1 is next to a square wire loop...
A very long thin wire carries a current I1 is next to a square wire loop of width L = 5 .0 cm. Both the wire and the loop lay in the same plane with a gap of s = 1 .0 cm between them. The square loop has a break where two parallel plates with surface area A = 4 .0 cm 2 are separated by a gap of d = 1 µm. The radius of the wire that...
A long, straight wire lies on a horizontal table in the xy-plane and carries a current...
A long, straight wire lies on a horizontal table in the xy-plane and carries a current of 2.50 microA in the positive x-direction along the x-axis. A proton is traveling in the negative x-direction at speed 3.1 x 104 m/s a distance d above the wire. a) If you consider the moving proton as a "current", in what direction is the magnetic field produced by the moving proton at the location of the long straight wire? b) In what direction...
A long straight wire lies on a horizontal table and carries a current of 0.48 μA....
A long straight wire lies on a horizontal table and carries a current of 0.48 μA. A proton with charge qp = 1.60218 × 10^−19 C and mass mp = 1.6726 × 10^−27 kg moves parallel to the wire (opposite the current) with a constant velocity of 12200 m/s at a distance d above the wire. The acceleration of gravity is 9.8 m/s^2. Determine this distance of d. You may ignore the magnetic field due to the Earth. Answer in...
True/False 1) A wire carrying current due east in a magnetic field is deflected due north....
True/False 1) A wire carrying current due east in a magnetic field is deflected due north. The magnetic field must have a component that points into the ground 2) The self-inductance of a solenoid depends on the geometry of the solenoid and is independent of the current flowing through it 3) A horizontal bar that is oriented east to west is pulled vertically upward through a magnetic field that points due north. The east end of the bar is at...
A long straight wire lies on a horizontal table and carries an ever-increasing current toward the...
A long straight wire lies on a horizontal table and carries an ever-increasing current toward the north. Two coils of wire lie flat on the table, on on either side of the wire. When viewed from above, the direction of the induced current is clockwise for the west coil counterclockwise for the west coil There is no induced current in the west coil clockwise for the east coil counterclockwise for the east coil There is no induced current in the...
​A horizontal wire 12 m long carrying a current of 20 A due north passes through...
​A horizontal wire 12 m long carrying a current of 20 A due north passes through a 0.75 T horizontal magnetic field that points 60o north of west. What size magnetic force acts on this wire? also what is the directiom of the force acting on the magnetic wire?
A wire 80 cm long carries 11 A of current. From this wire, a loop of...
A wire 80 cm long carries 11 A of current. From this wire, a loop of 90-turns is made and placed in a magnetic field of 6.50 Tat an angle of 35˚. In first experiment, a square loop is formed and in the second experiment, a circular loop is formed with same number of turns. Calculate the torque in each loop. Which loop produces more torque-the circular loop or the square loop? What is the reason for this change of...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT