Because A.C. current is easy to carry over long distance with minute loss than d.c. current.
To convert direct current to alternating current you need either an inverter or a motor-generator set.
"What is alternating current machine?"
An AC Adapter converts direct current into alternating current. It is handy when you only have 12 volt battery current and you need to use power tools which only run on alternating current.
The symbol for alternating current is: ~
Vac usually stands for voltage alternating current. It represents the voltage of an alternating current electrical system.
Alternating current. Direct current is used in batteries.
A megohm is a unit of resistance to the flow of electricity. The requirements of motors are given in terms of voltage, current, whether they are direct or alternating current and, if alternating current, the number of phases.
Solar panels are direct current (DC), the electric in the meter is alternating current (AC). You need a special transformer to convert from direct to alternating. This usually has to be done since everything in your house usually runs on alternating current.
Alternating Current is measured in Amperes.
Alternating current is better than direct current for transmission.
A generator produces alternating current.
Nicola Tesla is the father of alternating current.