Can a state pass a gun ban? Yes, but it would considered (by most people) unconstitutional. That's what the Heller lawsuit was about.
The people in DC decided to give up their right to decide what was best for themselves.
About 30 years ago, but I can't find an exact date.
Washington DC
A DC pass through will pass a DC voltage in only one direction. Bidirectional will let a DC voltage travel both directions.
simple capacitor can do this job (to block dc and pass ac).
DC refers to the District of Columbia, which is not a state.
No
Washington dc is not a state.
DC. The District of Columbia is not part of any state, and uses DC in place of a state.
stricter sentencing on gun related incidents?
-- If the excitation source is AC, then the steady state of the circuit depends on the voltage, frequency, and waveform (harmonic content) of the source. -- If the excitation source is DC, then the steady state current in a series circuit is zero. DC doesn't pass through a capacitor.
Usually just a 24 hour ban with an error