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David's user avatar
David's user avatar
David
  • Member for 10 years, 11 months
  • Last seen more than a month ago
51 votes
Accepted

Why is the pressure inside a soap bubble higher than outside?

12 votes

What is the relationship between Faraday cage mesh size and attenuation of cell phone reception signals?

8 votes

"Lack of inversion symmetry" in crystal?

7 votes
Accepted

How does friction product heat?

7 votes

How can a photon have energy when its mass is zero?

7 votes
Accepted

What does a light wave look like? (3D model)

7 votes

Is the electric field of a volume charge distribution well defined?

5 votes

How does the magnetic field always lag the electric field in a conductor?

4 votes

Proof of Ampère's law from the Biot-Savart law for tridimensional current distributions

4 votes

Current on both sides of a capacitor

4 votes

Why does a glass window reflect white objects white from an atomic scatterers’ viewpoint?

3 votes
Accepted

how to add two plane waves if they are propagating in different direction?

3 votes

Ringing sound when you flip a coin?

3 votes
Accepted

materials that can render Bluetooth useless

3 votes

Interesting problem involving pendulum, collisions, and electric charges

3 votes

Path of EM wave propagation in a circuit wire

3 votes
Accepted

Finding time period of oscillations in a multiple spring system attached to a solid cylinder

3 votes
Accepted

Is conservation of energy only for isolated systems?

2 votes
Accepted

Light is/produces a electromagnetic wave, but is the opposite also true?

2 votes
Accepted

Find the acceleration of the bead

2 votes

Dipole antenna $E$-field direction

2 votes

Why should gluons move at a speed determined by $\mu_0$ and $\varepsilon_0$?

2 votes

Does charged saltwater repel itself?

2 votes

Difference between dielectric and insulators

2 votes

Is potential energy an energy exists or potentiality of energy?

2 votes
Accepted

The moving capacitor

2 votes

Proper and rigourous derivation of Gaussian beam?

1 vote
Accepted

Why is it that the cathodic battery symbol in an equivalent battery circuit doesn't point in reverse for an open circuit case?

1 vote

Ohm's Law: Drude Model

1 vote

What are the fields produced around a current carrying conductor?