What is Current or Electric Current?
Current or electric current is flow or charge (electrons that are negatively charged) from one medium to another through a conductor medium like copper wire, aluminum wire, circuit, electric wiring etc.
What is the SI Unit of Current?
The SI unit of current isampere.
How is Electric Current Measured?
Electric current is measured using an ammeter.
Types of Electric Current
Electric current is of 2 types – AC or Alternating Current and DC or Direct Current.
What is DC Current?
DC Current Symbol
DC or Direct Current is the flow of electric charge in one direction. This is called unidirectional flow of electric charge. DC current is produced by devices like battery, thermocouple, solar cell, dynamo etc. DC current is also called galvanic current.
AC Current Symbol
What is AC Current?
AC or Alternate Current is the flow of electric charge that periodically reverses direction in a waveform.
Current in Mobile Phone
The circuit of a mobile phone PCB works on DC current. The battery provides DC current to the circuit.
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