A small bar magnet (mass = 200 g, length = 15 cm) has a magnetic moment of 7.5 Am2. What is the maximum possible torque which could act on this magnet in a field of 5x10-5 T?
A: 3.75x10^-4Nm
A small bar magnet (mass = 200 g, length = 15 cm) has a magnetic moment...
A bar magnet is oriented with its magnetic dipole moment at 33.1° to the direction of a 0.0301-T magnetic field, causing a torque of 0.00213 N·m to act on it. Find the magnitude of the magnet\'s magnetic dipole moment.
A bar magnet is oriented with its magnetic dipole moment at 30.7° to the direction of a 0.0107-T magnetic field, causing a torque of 0.00487 N·m to act on it. Find the magnitude of the magnet\'s magnetic dipole moment.
The on-axis magnetic field strength 15 cm from a small bar magnet is 5.1 pt. Wha Expl Part Review What is the bar magnet's magnetic dipole moment? Express your answer to two significant figures and include the appropriate units. M = 8.6x10-2 A-m? Submit Previous Answers ✓ Correct Part B What is the on-axis field strength 19 cm from the magnet? Express your answer to two significant figures and include the appropriate units. I': HÅR OO? B = 3.0 •...
a bar magnet of magnetic moment 6 J/T is aligned at 60 degree with a uniform external magnetic field of 0.44 T. Calculate (a) the work done in turning the magnet to align its magnetic moment (1) normal to the magnetic fiel A bar magnet of magnetic moment 6 J/T is aligned at 60° with a uniform external magnetic field of 0-44 T. Calculate (a) the work done in turning the magnet to align its magnetic moment (i) normal to...
A permanent magnet has a magnetic dipole moment of 0.150 A · m2. The magnet is in the presence of an external uniform magnetic field (provided by current-carrying coils) with a magnitude of 0.0800 T, which makes an angle of 19.0° with the orientation of the permanent magnet. a) What is the magnitude of the torque (in N · m) on the permanent magnet? b) What is the potential energy (in J) of the system consisting of the permanent magnet...
A permanent magnet has a magnetic dipole moment of 0.120 A · m2. The magnet is in the presence of an external uniform magnetic field (provided by current-carrying coils) with a magnitude of 0.0800 T, which makes an angle of 18.0° with the orientation of the permanent magnet. (a) What is the magnitude of the torque (in N · m) on the permanent magnet? -------------- N . m (b) What is the potential energy (in J) of the system consisting...
Magnetic levitation A metal rod of length w = 15 cm and mass m = 85 grams has metal loops at both ends, which go around two metal poles (see the figure). m = mass of red ------ ------- The rod is in good electrical contact with the poles but can slide freely up and down. The metal poles are connected by wires to a battery, and a current I = 3 amperes flows through the rod. A magnet supplies...
A particular Alnico (aluminum, cobalt, nickel, and iron) bar magnet (magnet A) has a mass of 10 g. It produces a magnetic field of magnitude 6e-05 T at a location 0.18 m from the center of the magnet, on the axis of the magnet. (a) Approximately what is the magnitude of the magnetic field of magnet A a distance of 0.36 m from the center of the magnet, along the same axis? (b) If you removed the original magnet, and...
1. Suppose that the dipole moment associated with an iron atom of an iron bar is 1.6 × 10-23 J/T. Assume that all the atoms in the bar, which is 4.3 cm long and has a cross-sectional area of 1.5 cm2, have their dipole moments aligned. (a) What is the dipole moment of the bar? (b) What torque must be exerted to hold this magnet perpendicular to an external field of 1.2 T? (The density of iron is 7.9 g/cm3...
Suppose that the dipole moment associated with an iron atom of an iron bar is 1.7 × 10-23 J/T. Assume that all the atoms in the bar, which is 4.7 cm long and has a cross-sectional area of 1.4 cm2, have their dipole moments aligned. (a) What is the dipole moment of the bar? (b) What torque must be exerted to hold this magnet perpendicular to an external field of 1.4 T? (The density of iron is 7.9 g/cm3 and...