a constant amplitude supply
DC Motor works on DC source and AC motor works on AC source
use a dc power source. preferably an ac/dc power adapter. any dc power source will do.
Dc chopper is a static device which converts constant dc source to variable dc.
it is a machine which operates on the dc power source.
A variable speed module in a motor can work with ac or dc source
The two sources add together, imposing a DC bias to the AC source.
Dc chopper is a static device which converts constant dc source to variable dc.
Prove that capcitor will be open circuited if DC source is applied?
You need suitable DC power source to run it.
it is only work on it so that used
The simplest is a voltmeter; the best is an oscilloscope. All modern voltmeters have an AC/DC selector switch. When set to AC and measuring a DC source, the reading will be 0; when set to DC and measuring an AC source, the reading will be 0 or varying wildly. An oscilloscope will show you a flat line for a DC source, and a sinusoidal curve centered at 0 for an AC source.
With an AC and a DC voltage source in series, the DC voltage can be added to the RMS value of the AC voltage to give the effective voltage.