list 10 diffrences between alternative current (ac) and direct current (dc)
Answers
Answer:
Definition
AC The direction of the current reverse periodically.
DC The direction of the current remain same.
Causes of flow of electrons
AC Rotating a coil in a uniform magnetic field or rotating a uniform magnetic field within a stationary coil .
DC Constant magnetic field across the wire.
Frequency
AC 50 or 60 Hertz
DC Zero
Direction of flow of electrons.
AC Bidirectional
DC Unidirectional
Power Factor
AC Lies between 0 and 1
DC Always 1
Polarity
AC It has polarity (+, -)
DC Do not have polarity
Obtained From
AC Alternators
DC Generators, battery, solar cell, etc.
Type of load
AC Their load is resistive, inductive or capacitive. DC Their load is usually resistive in nature.
Graphical Representation
AC It is represented by irregular waves like triangular wave, square wave, square tooth wave, sine wave.
DC It is represented by the straight line.
Transmission
AC Can be transmitted over long distance with some losses.
DC It can be transmitted over very long distance with negligible losses.
Convertible
AC Easily convert into direct current
DC Easily convert into alternating current
Substation
SubstationAC Few substation is required for generation and transmission
DC More substations are required for generation and transmission.
Passive Parameter
Passive Parameter AC Impedance
DC Resistance
Harazdous
HarazdousAC Dangerous
DC Very dangerous
Application
AC Factories, Industries and for the domestic purposes.
DC Electroplating, Electrolysis, Electronic Equipment etc.
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