Does a filament of lamp still have resistance when no current flows, and if yes, why?
34935
How is resistance defined when there is no current?
78057
What is the physical explanation for energy transport in simple electrical circuits?
142245
Why does all the current flow through a short circuit if its voltage drop is considered zero?
110623
Why does current density changes but not current?
109275
How does the current remain the same in a circuit?
124910
Is a current-limiting resistor required for LEDs if the forward voltage and supply voltage are equal?
5210
Why doesn't current flow in reverse biased diode?
87687
Why is there no current flow when I connect two opposite terminals of two separate batteries?
158821
Saturation current in photoelectric effect
43640
Steady-State Current
150065
How to make a incandescent lightbulbs filament withstand shock?
158797
accounting for LED resistance
42977
Why is there an "electric" potential drop across the resistor?
22076
Why do resistors still use color coding?
20820
What's the difference of placing multiple resistors and one resistor for limiting the current of LEDs?
87842
Why am I getting 50V at a light when the switch is off?
1069
Correct formula for LED current-limiting resistor?