# how to find direction of torque in magnetic field

Using Eq. Step 1: Read the problem. Solenoids have many practical implications and they are mainly used to create magnetic fields or as electromagnets. In atomic physics, the magnetic quantum number (m l) is one of the four quantum numbers (the other three being the principal, azimuthal, and spin) which describe the unique quantum state of an electron.The magnetic quantum number distinguishes the orbitals available within a subshell, and is used to calculate the azimuthal component of the orientation of orbital in space. Your fingers point in the direction of , and your thumb needs to point in the direction of the force, to the left. When it's antiparallel, Students begin to focus on the torque associated with a current carrying loop in a magnetic field. b. From (38.5.2) we can deduce unit of Magnetic force does no work on a moving charge Magnetic torque on a current loop does work: W= There is no net force, only torque, on a current loop (=magnetic dipole moment) in B. The magnitude of magnetic force on each length is F 1 = I lB F 1 = I l B, so substituting this value in above equation gives. As shown in Fig. So, forces on the wires RS and PQ will be: The force acting on the North Pole is along with the magnetic field. Both the direction and magnitude of the torque can be programmed by specially designing the magnetic plate magnetization and manipulating the applied magnetic field. B First, consider rotating to position c. What are the signs of the work done by you and the work done by the field? Step 2: Use the Right-Hand rule to We want to rotate the dipole in the CCW direction. My textbook states That the torque experienced by a current carrying loop due to a magnetic field B , is given by the equation = M B ,where M denotes the magnetic moment of the current loop= I A . = 0, sin0 = 0, = 0. A large number of such loops allow you combine magnetic fields of each loop to create a greater (N-m) Solution: Magnetic field (B) direction is shown. If the external magnetic field is uniform, then there is no force on the dipole. Step 2: Identify the direction of the Electric Field. When a current is placed on a magnetic field, the direction of the magnetic force acting on such current is determined using the We have step-by-step solutions for your textbooks written by Bartleby experts!

The magnetic dipole moment of a loop of wire carrying a current in a magnetic field is defined as the torque acting on the loop of wire divided by the magnetic field strength: = . The direction of the torque is perpendicular to the direction of the area of the loop as well as the direction of the magnetic field i.e., along . When the magnet lies perpendicular to the direction of the magnetic field. Figure 11.6. In the case of static charges, the total magnetic force is zero. For part a, since the current and magnetic field are perpendicular in this problem, we can simplify the formula to give us the magnitude and find the direction through the RHR-1. Where does this work come from? Hence, it shows that a bar magnet and a solenoid produce similar magnetic fields. i.e. By convention, magnetic field lines leave the north pole and enters the south pole of a magnet. The direction of rotation of these motors can be easily changed.