<span>The formula for inductance X is X=2*pi*freq*L. With the given information, we solve for L. The equation becomes: L = X/(2*pi*freq). Substituting the known variables gives us L = 147ohms / (2*pi*2000hz). Solving for L, L equals .0117. The inductance of this inductor is 11.7 mH.</span>
Magnetic torquer
or torque rod are essentially sets of electromagnets that are laid out to create a
magnetic field that interfaces with an ambient magnetic field, so that the
counter-forces produced is a stronger magnetic force. In addition, its magnetic
field strength increases with the current due to the rod that has field lines
pointing in the same direction, closed together and nearly parallel with uniformly
spaced. This set up indicates that the field of a torque rod produced powerful
magnetic field than a torque coil.
The answer is C) Surface runoff.
Force on a proton when they are moving inside the magnetic field is given by
so here while protons are going upwards we can say its direction of velocity is towards +Y and magnetic field is towards us which is along +Z direction so they will have force due to this motion.
As per above equation of force we can have direction of force which is along +X direction.
So here both proton will bend towards +X direction and start moving in curved path.