Why are "magnetic field lines" called "lines of force" when they are perpendicular to the direction of force?
111964
Magnetic field lines vs. Electric field lines
52102
Do electrostatic fields really obey "action at a distance"?
22160
Why does a perpendicular force not change speed?
135787
Why do electric field lines point in the direction of decreasing electric potential?
128759
Why don't we define potential due to a magnetic field?
55127
What's the difference between the north and the south pole on a magnet?
76557
Is there an intuitive explanation for why Lorentz force is perpendicular to a particle's velocity and the magnetic field?
67845
How was the torque-force relationship discovered
104907
Why is the direction of net force on an object and the direction of acceleration of that object different in this problem?
3808
Why do same/opposite electric charges repel/attract each other, respectively?
13395
Why aren't Faraday's law of induction and Maxwell-Ampere's law (without sources) symmetric?
124132
What is the correct English name of these lines?
39132
Why is there a magnetic field around a magnet if there are no charges moving?
62367
Why can two (or more) electric field lines never cross?
133542
Why can't an electric field line suddenly break?
86671
Angle of electric field lines leaving a postive charge and entering a negative charge in dipole
125653
How does a spinning electron produce a magnetic field?