User John Katsantas

5 votes

2 answers

1k views

Cylinder , charge on surface, why is B inside zero?

electromagnetism magnetostatics

asked May 31, 2017 at 14:32

4 votes

0 answers

875 views

Drift velocity question

electricity solid-state-physics

asked Nov 24, 2017 at 16:38

2 votes

2 answers

524 views

Find torque due to Lorentz force - Wrong result [closed]

homework-and-exercises electromagnetism torque magnetostatics

asked May 29, 2017 at 16:43

2 votes

0 answers

90 views

Faraday's law-is voltage induction immediate/instantaneous?

electromagnetism electromagnetic-induction

asked Jun 25, 2017 at 22:07

1 vote

2 answers

2k views

Prove there is an equipotential sphere between two point charges

homework-and-exercises electrostatics potential-energy

asked Jul 29, 2017 at 16:18

1 vote

1 answer

312 views

Where is F=BIL force exerted on my conductor?

newtonian-mechanics electromagnetism magnetostatics

asked May 30, 2017 at 23:21

1 vote

1 answer

130 views

Magnetic force on open circuit?

electromagnetism electromagnetic-induction

asked Jun 25, 2017 at 20:51

1 vote

1 answer

1k views

What is the distance r^n in the pauli repulsion force between two ions?

quantum-mechanics electromagnetism electrostatics particle-physics

asked Jan 17, 2017 at 15:26

1 vote

0 answers

40 views

Question about integrating a small dF force to find total force F

electromagnetism integration

asked May 29, 2017 at 11:36

1 vote

1 answer

2k views

Simple harmonic motion with pulley with mass

homework-and-exercises newtonian-mechanics harmonic-oscillator spring string

asked Aug 23, 2018 at 11:11

1 vote

2 answers

777 views

Rod connected to springs. Can this oscillate if the rod has no mass?

homework-and-exercises newtonian-mechanics harmonic-oscillator spring

asked Aug 28, 2018 at 14:49

0 votes

1 answer

164 views

Electron and hole concentration in material doped with donors and acceptors

semiconductor-physics

asked Jan 18, 2020 at 12:50

0 votes

1 answer

64 views

Why does $g$ show up in the frequency of this oscillation?

newtonian-mechanics harmonic-oscillator spring oscillators

asked Aug 24, 2018 at 16:31

0 votes

1 answer

513 views

Calculate lorentz force on a surface?

electromagnetism magnetostatics

asked May 29, 2017 at 12:55

0 votes

2 answers

1k views

Is there a magnetic field between capacitor plates while the capacitor is charging?

electromagnetism maxwell-equations

asked Jan 27, 2017 at 6:26

0 votes

1 answer

468 views

Magnetic force in the inside of cylindrical conductor?

electromagnetism magnetostatics

asked May 28, 2017 at 23:38

0 votes

1 answer

4k views

Negative mutual inductance?

electromagnetism inductance

asked Jun 2, 2017 at 11:41

0 votes

2 answers

429 views

Find incidence angle from wave equation?

optics waves electromagnetic-radiation

asked Jun 4, 2017 at 23:51

0 votes

1 answer

96 views

What is the polarization of this EM wave?

optics waves electromagnetic-radiation polarization

asked Jun 5, 2017 at 13:54

0 votes

0 answers

40 views

Two ways, different result: Find torque due to magnetic force on a conductor

homework-and-exercises electromagnetism magnetostatics

asked Jun 5, 2017 at 17:38

0 votes

1 answer

356 views

Question about spherical capacitor

electric-fields capacitance gauss-law

asked Jun 25, 2017 at 16:27

0 votes

0 answers

72 views

Work done moving a charge- does the path matter?

electrostatics

asked Jun 25, 2017 at 20:11

0 votes

1 answer

157 views

Differential element of current question

electromagnetism maxwell-equations magnetostatics

asked May 29, 2017 at 20:30

0 votes

3 answers

7k views

Magnetic field along the axis of a solenoid - Can I find it this way?

electromagnetism magnetic-fields magnetostatics

asked May 30, 2017 at 0:51

0 votes

1 answer

341 views

Electrons close to Fermi-Conductivity

solid-state-physics conductors electronic-band-theory fermi-energy

asked Nov 20, 2017 at 16:52

0 votes

1 answer

82 views

Electric field calculation gives opposite direction

electromagnetism electrostatics potential

asked Jul 29, 2017 at 13:36

Stack Exchange Network

current community

your communities

more stack exchange communities

26 Questions

Cylinder , charge on surface, why is B inside zero?

Drift velocity question

Find torque due to Lorentz force - Wrong result [closed]

Faraday's law-is voltage induction immediate/instantaneous?

Prove there is an equipotential sphere between two point charges

Where is F=BIL force exerted on my conductor?

Magnetic force on open circuit?

What is the distance r^n in the pauli repulsion force between two ions?

Question about integrating a small dF force to find total force F

Simple harmonic motion with pulley with mass

Rod connected to springs. Can this oscillate if the rod has no mass?

Electron and hole concentration in material doped with donors and acceptors

Why does $g$ show up in the frequency of this oscillation?

Calculate lorentz force on a surface?

Is there a magnetic field between capacitor plates while the capacitor is charging?

Magnetic force in the inside of cylindrical conductor?

Negative mutual inductance?

Find incidence angle from wave equation?

What is the polarization of this EM wave?

Two ways, different result: Find torque due to magnetic force on a conductor

Question about spherical capacitor

Work done moving a charge- does the path matter?

Differential element of current question

Magnetic field along the axis of a solenoid - Can I find it this way?

Electrons close to Fermi-Conductivity

Electric field calculation gives opposite direction