SCR's are mainly used in AC circuits. They could be used in DC circuits but they then would not be able to turn off. They require the zero crossing of the AC circuit to turn off. Then when positively biased they can be turned back on.
No, an AC dimmer switch is designed to work with AC-powered devices, not DC. DC fans require a different type of dimmer switch specifically rated for DC power. Using an AC dimmer switch on a DC fan can potentially damage the fan or the switch itself.
Both, in a way. Electronic components, including moth components inside the computer, need DC. However, since the power available in homes or offices is AC, a computer is designed to work with this. A computer has a power supply that internally converts AC to DC.
The basic fluorescent light fixture is AC, although there are fluorescent lights powered by DC.
AC - Alternating Current, same thing that comes out of a wall socket DC - Direct Current, batteries. <<>> When a device has AC/DC on its name plate, it can work off either of the two voltages. Many portable radios have this function. When the radio is plugged into AC, the voltage is transformed to the working DC voltage and then rectified to a DC voltage. When the radio is on battery operation, the radio operated strictly from the DC voltage supplied by the batteries. The change between voltages from AC to DC or DC to AC is almost instantaneously. This change over is done through an AC powered relay in the radio. When the AC held in relay looses its supply it de energizes and switches over to DC power if the batteries are in the radio. With batteries in the radio try it. Plug into the AC supply, turn on the radio that has batteries installed in it, unplug the AC supply and the radio will not miss a beat.
Usually nothing good will happen. The appliance may not work or be damaged or overheat. Sometimes for small electronics, it will work fine. Many electronic devices have a rectifier that converts AC to DC, and DC will pass through and work fine. But other devices have transformers that will not work with DC input.
Electronics devices are work both AC and DC currnt . Such as Diode , SCR , Capacitor can work both AC and DC current . Espacilly voltage control circuits such as dimmer , and then voltage rectifier circuits , means power suppy circuts and so on.
120
A dc series motor can work on dc and ac because dc motors are totally reversible.
If having DC and AC is required then a PWM pulse width modulator is required to chop the DC to make AC
It is a silicon-controlled rectifier, converting AC to DC for use in drawworks, mud pumps, etc.:silicon-controlled-rectifier
The only use of an SCR in a powersupply regulator that I know of is a Crowbar protection circuit to force the breaker to pop if the regulation fails and the powersupply output voltage rises too high.
A laptop runs on DC. Either from the battery, or the external power supply, which converts AC power to DC.
No it cant
Transformers don't work with DC supplies - they only work on AC.
A transformer is a device to convert high voltage AC to low voltage AC & vice-versa. It works on the principle of induction. Since induction occurs only in an AC supply, a transformer cannot work on DC.. So, it is not possible to convert DC supply to AC using transformer. You would need an inverter to convert DC to AC.
hot wire ammmeter or a moving iron ammeter will work for ac and dc.
Because some appliances work with ac current and some with dc current.