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it at the resistive it will be no prblem and doesn't matter for some equipment, other types of equipment will be
destroyed. For a simple electric heater or an incandescent bulb AC or DC are
acceptable, provided the rms(root means square) voltage of the AC is equal to the DC voltage. If
the heater has a time switch, DC is unacceptable. A DC motor may or may not
work with AC depending on its type and size. The commutator motor as used in
vacuum cleaners is essentially a DC motor, but most types of AC motor are not
interchangeable to DC. Electronic circuits usually required a DC supply and if
AC is applied many of the components will be destroyed.
There is three types of load( resistive , capacitive & inductive ) the first one can hold ac ( but with0.7 of its power) becuse it doesnt depend on frequency capacitive & inductive loads depend on frequency in dc its value zero (impeadance to low in inductive to hi in capactive) .
let us consider some dc loads
dc motor
dc relay
dc led...etc
we will discuss one by one about giving ac supply to the above said dc loads
1. dc motors of several types among them
let us talk about shunt and series motors. if we give ac supply to the dc shunt motor the rotor will be locked by produsing clock and anti clock wise torques, but it draws more current and gets heated up
in the case of dc series motor the construction is like as universal motor therefor the dc series motor rotates when we give ac supply
2. if we give ac supply to dc ralay the coil will get energized and it will works as usual
3. leds and incandicent lamps will normally works on both ac and dc
therefore we can conclude that most of the loads designed for dc will work on ac, but there will be slight variation in current consumed by them. only few dc loads won't work on ac
It will work without any bad effect for the linear loads but for the non linear loads it will not work
Will work only with the positive value of the supplied AC and will ignore the negative.
it at the resistive it will be no prblem and doesn't matter for some equipment, other types of equipment will be
destroyed. For a simple electric heater or an incandescent bulb AC or DC are
acceptable, provided the rms(root means square) voltage of the AC is equal to the DC voltage
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