4. A circular conducting loop of radius r carrying current I as shown in Fig. 4...
A flat circular loop of wire of radius R carrying a current I is placed in a uniform magnetic field B that is directed in the plane of the current loop. What is the magnetic moment M of the loop? What is the magnitude of the torque acting on the loop? In which direction the loop will rotate under the influence of this torque?
A circular loop of wire, centered at the origin, lies in the xy plane. The loop has a radius of 10.0cm. A cylindrical magnet (radius 0.5 cm and length-5 cm) starts out at rest with its primary axis along the z-axis. The bottom tip of the magnet is a north-pole and is situated at z 8 cm. The magnet is dropped straight down so that it falls north- pole down and it goes straight through the center of the loop....
For the following situations involving a bar magnet and circular conducting loop, indicate the direction of the induced current in a diagram and explain your reasoning clearly. (a) You move the north pole of the magnet towards the loop, keeping the magnet aligned with the symmetry axis of the loop. (b) You move the south pole of the magnet towards the loop, keeping the magnet aligned with the symmetry axis of the loop. (c) You move the north pole of...
A strong magnet is placed under a horizontal conducting ring of radius r that carries current I as shown in the figure below. The magnetic field B makes an angle θ with the vertical at the ring's location. (a) what is the magnitude of the resultant magnetic force on the ring? (Use any variable or symbol stated above along with the following as necessary: π) (b) What is the direction of the resultant magnetic force on the ring? to the...
IP A single current-carrying circular loop of radius R is placed next to a long, straight wire, as shown in the figure(Figure 1) . The current in the wire points to the right and is of magnitude I. A. In which direction must current flow in the loop to produce zero magnetic field at its center? Explain. B. Calculate the magnitude of the current in part A. Express your answer in terms of some or all of the variables R,...
A single current-carrying circular loop of radius R is placed next to a long, straight wire, as shown in the figure. The current I in the wire flows to the right and the a current I flows counter-clockwise on the loop. What is the net magnetic field produce at the center of the loop? I R/2
4. Consider a circular loop of wire with a mass m and a radius R. The circular loop is vertical such that gravitational force on the loop points straight down. You may assume this is near the surface of the earth such that the force of gravity has a magnitude FGl mg. The upper half of the circular wire is immersed in a uniform magnetic field B pointing into the page. In the figure below this corresponds to the region...
Page 3 of 3 A current-carrying circular loop of wire (radius r, current I) is partially immersed in a magnetic field of constant magnitude Bo directed out of the page as shown in the figure below. Determine the net force on the loop due to the field in terms of 0o. Note the direction of x and y coordinates and the following double angle trigonometric identity, cos(2a) 1-sin (a) Q7. B-0 B-0
A current-carrying circular loop of wire (radius r, current I) is partially immersed in a magnetic field of constant magnitude B0 directed out of the page as shown in the figure.(Figure 1) Part A Determine the x, y, and z projections of the net force on the loop due to the field in terms of θ0. (Note that θ0 points to the dashed line, above which B = 0.)
A physician is using a device with a thin circular coil of current-carrying wire of radius 3.30 cm to stimulate neurons in a patient's brain. The coil is placed directly against the patient's skull, and everywhere within the area of the coil, the magnetic field changes at a rate of 1.10 X 104 T/s. (a) What is the magnitude of the emf (in V) induced around the circumference of this circular area in the brain? (Assume the magnetic field is...