Question

differentiate between ac and dc current in two points​

Answer 1

Answer:

Alternating Current

Direct Current

AC is safe to transfer longer distance even between two cities, and maintain the electric power. DC cannot travel for a very long distance. It loses electric power.

The rotating magnets cause the change in direction of electric flow. The steady magnetism makes DC flow in a single direction.

The frequency of AC is depended upon the country. But, generally, the frequency is 50 Hz or 60 Hz. DC has no frequency of zero frequency.

In AC the flow of current changes its direction backwards periodically. It flows in a single direction steadily.

Electrons in AC keep changing its directions – backward and forward Electrons only move in one direction – that is forward.

Answer 2

Explanation:

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What is an Alternating Current (AC) ?

In alternating current, the electric charges flow changes its direction periodically. AC is the most commonly used and most preferred electric power for household equipment, office, and buildings, etc.

What is Direct Current (DC) ?

Unlike alternating current, the flow of direct current does not change periodically. The current electricity flows in a single direction in a steady voltage. The major use of DC is to supply power for electrical devices and also to charge batteries.

The major differences between Alternating Current and Direct Current are given below:

➨ Alternating Current

• AC is safe to transfer longer distance even between two cities, and maintain the electric power.
• The rotating magnets cause the change in direction of electric flow.
• The frequency of AC is depended upon the country. But, generally, the frequency is 50 Hz or 60 Hz.

➨ Direct Current

• DC cannot travel for a very long distance. It loses electric power.
• The steady magnetism makes DC flow in a single direction.
• DC has no frequency of zero frequency.