You can buy a DC tv, but most home tv's are AC.
The SI unit of EMF (electromotive force) in a direct current circuit is Volts. The circuits current is measured in ampere's
direct current
A current consisting of charges that flow only in one direction is called direct current (DC). In DC, electrons flow continuously in one direction from the negative to the positive terminal of a power source.
alternating current have cyccles (+ve and -ve half cycle, its mean direction reverse) in a single wire only hot wite or positive wire and the other wire that is cold or negative wire is directly from nutral point or earth point which is only to complete the circuit.
Most all electronic appliances run on direct current.DC provides a constant voltage or current, while AC alternates the current.But lets just say you have the need to power a large electronic appliance that has a motor that operates on AC by using the amount of DC (batteries) you have. No problem this can be done.An inverter is an electrical device that converts DC battery power into 120-volt AC household power to run appliances such as a refrigerator.Inverters are available in different power capacities and some are powerful enough to operate refrigerators! You'll need to know how much DC battery capacity you'll have to have on hand to run your refrigerator.
direct
The television runs on Direct current or DC. Though AC is applied, it is converted to DC and used by the television to operate.
Electric current, but the voltage required depends on the electrical standards of the country you are in.
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yes it can
Yes but is somewhat complicated to get good level DC from an AC source.================================Answer #1.5 :All electronic devices operate on DC ... radios, TVs, computers, stereos, etc.If the device plugs into the wall outlet for power to operate, then the AC fromthe wall outlet is used to produce DC internally to run the device.
Electric current, but the voltage required depends on the electrical standards of the country you are in.
alternative
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That depends on the type of thermistor Some solid state thermistors are only able to run on one correct polarity and so are direct current. Other thermistors designed as simple heat variable resistors can run on both direct current and alternating current.
empire state building
Yes, household power supplies are generally alternating current, whereas cells produce direct current. Of course they are are designed to run on a domestic power supply, but the first thing that happens inside the set, is that it is converted to DC. It is then reduced to lower voltages using inverters, to run the semiconductors of the circuits. Electronic circuits need DC at low voltages to work. TV sets that work off batteries and/or car power supplies, can dispense with the Inverters, as this is already at a more suitable voltage.