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Top Questions
8
votes
How does a resistor "know" to increase the potential difference across its ends?
electric-circuits
electricity
electric-current
electrical-resistance
voltage
asked Jan 3 at 19:03
physics.stackexchange.com
7
votes
Why does plucking a string produce harmonics instead of a pulse?
waves
string
resonance
vibrations
harmonics
asked Feb 27 at 20:51
physics.stackexchange.com
7
votes
Is potential difference always required for current?
electric-circuits
electric-current
potential
electrical-resistance
voltage
asked Feb 28 at 6:02
physics.stackexchange.com
7
votes
How is gravitational potential energy $mgh$?
forces
energy
newtonian-gravity
work
potential-energy
asked Nov 18, 2021 at 16:56
physics.stackexchange.com
6
votes
Can't understand Resonance in an Air Column
waves
acoustics
frequency
resonance
asked Feb 19 at 14:57
physics.stackexchange.com
Top Answers
15
Where does the "water" come from in a mirage?
physics.stackexchange.com
5
What is cold wind?
physics.stackexchange.com
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