A wire coil lies horizontally on a table. A current flows clockwise in the coil (when viewed from above). A magnetic field is present. The torque on the coil will be maximum when the magnetic field points?
A. Straight up
B. Straight down
C. Horizontally
A wire coil lies horizontally on a table. A current flows clockwise in the coil (when...
A current carrying loop of wire lies flat on a table top. When viewed from above, the current moves around the loop in a counterclockwise sense. What is the direction of the magnetic field caused by this current, outside the loop? The magnetic field: A) circles the loop in a clockwise direction. B) circles the loop in a counterclockwise direction. C) points straight up. D) points straight down. Can someone explain why the correct answer is straight down by hand...
Part A A coil lies flat on a tabletop in a region where the magnetic field vector points straight up. The magnetic field vanishes suddenly. When viewed from above, what is the sense of the induced current in this coil as the field fades? a.) The induced current flows clockwise. b.) The induced current flows counterclockwise. c.) There is no induced current in this coil. d.) The current flows clockwise initially, and then it flows counterclockwise before stopping.
4. A coil lies flat on a tabletop in a region where the magnetic field points straight down into the table. Which of the following scenarios will result in the coil's current going counterclockwise as viewed from above? (Choose all choice(s) that apply) (6 points) YA The magnetic field decreases B) The magnetic field increases. C) The direction of the magnetic field becomes more horizontal over time. D) The radius of the coil is increased. E) The radius of the...
A square coil of wire has sides of length 3.00 cm and 80.0 turns and lies in the xy-plane. The coil lies in a magnetic field of 0.100 T directed in the positive y-direction. (a) Determine the torque on the coil if it carries a current of 2.00 A in a clockwise direction. (b) Suppose the coil rotates 30.0° in the direction of the torque – find the new value of the torque’s magnitude
The radius of a coil of wire with N turns is r = 0.28 m. A clockwise current of Icoil = 1.0 A flows in the coil, as shown. A long, straight wire carrying a currentIwire = 29 A toward the left is located 0.04 m from the edge of the coil. The magnetic field at the center of the coil is zero tesla. Determine N, the number of turns.
A current carrying circular loop of wire lies flat on a table top. When viewed from above, the current moves around the loop in a counterclockwise sense. What is the direction of the magnetic field caused by this current, inside the loop? Please explain!
1. A circular coil of wire 8.60 cm in diameter has 16.0 turns and carries a current of 2.90 A . The coil is in a region where the magnetic field is 0.620 T . a. What orientation of the coil gives the maximum torque on the coil ? Please, enter the value of the angle between the field and the normal to the plane of the loop. b. What is this maximum torque in part (A) ? c. For...
A loop of wire with a clockwise current is in a uniform magnetic field that is in the plane of the loop. The loop has: A) both a net force and a net torque on it. (B) a net force on it but no net torque on it. (C) no net force on it but a net torque on it. (D) neither a net torque nor a net force on it. (E) a magnetic field that adds with the uniform...
A square coil of area L^2 consists of N turns of wire carrying a current I. The coil lies in the horizontal (xy) plane with current moving clockwise around the coil when viewed from above. Find the magnitude and direction of B at a height H above the geometric center of the coil. Give these for the special case H=0.
The size of the magnetic force on a straight wire of length
L carrying current I in a uniform magnetic field
with strength B is
F=ILBsin(?).
Here ? is the angle between the direction of the
current (along the wire) and the direction of the magnetic field.
Hence Bsin(?) refers to the component of the
magnetic field that is perpendicular to the wire, B?. Thus
this equation can also be written as
F=ILB?.
The direction of the magnetic force on...