Why does a plastic comb attracts tiny bits of paper if it is an insulator?
126957
Why does the comb attract the pieces of papers if they're neutral?
122670
Explanation for $E~$ not falling off at $1/r^2$ for infinite line and sheet charges?
1245
What physical properties of materials trigger the capacitive touch screen?
145128
Understanding of Material Implication
67794
The separation between the two plates of a capacitor is increased
28177
What causes the permittivity and permeability of vacuum?
147803
Why does vacuum have a nonzero characteristic impedance towards electromagnetic radiation?
3837
Why will two bubbles floating on water surface attract each other?
133489
What is the point of the Red Thread/Tape around evidence or newspaper clippings?
103232
What are those small metal bars going across a PCB for?
204
How does a magnet work?
39221
Why is paper more frangible when it is wet?
107970
Laser, wire, and a circle of light
68735
How does the sticky bit work?
106988
What does really attracts a water stream to a charged object?
105867
Mesh is on the inside of the object in certain areas?
29178
When water climbs up a piece of paper, where is the energy coming from?