Increase the pulling force of a solenoid with a permanent magnet
126245
Replacing the core of a solenoid to increase the pulling force
67794
The separation between the two plates of a capacitor is increased
136401
Violation of energy conservation in retarded interaction of magnet and coil
115158
Can magnetic fields be redirected and focused at one point?
76433
How strong can an electromagnet be?
48475
Is the electromagnetic force responsible for contact forces?
48969
The magnetic field of a magnetic monopole
91629
Force between two finite parallel current carrying wires
109590
Work done by the Magnetic Force
144615
How much work can a force on a spring do? (Why are two methods wrong?)
12758
Magnets arranged in a sphere
13693
Post Problem Analysis - Rod in a cylindrical time varying magnetic field?
117403
Force on rope with accelerating mass on pulley
17170
How strong of magnetic field would noticibly attract a person?
35141
Effect on loading a DC motor - load torque
82740
How strong of a magnet would be needed to mess up this hardware?
66959
Motor to spin slowly, low torque