Question

what is the difference between alternating current and direct current? what type of current runs in the wires of your house?

Explanation:

• Alternating current (AC) changes direction periodically. Its voltage and current values vary sinusoidally (or in a similar periodic pattern). It is efficient for long - distance transmission as transformers can easily change its voltage level.
• Direct current (DC) flows in one direction only. Its voltage and current values are relatively constant (in ideal cases).
• In most houses, alternating current is used. This is because power plants generate AC, and it is more convenient for distribution over long distances due to the ease of voltage transformation using transformers.

Answer:

• The difference: Alternating current changes direction periodically (voltage and current vary sinusoidally), while direct current flows in one direction (voltage and current are relatively constant).
• House current type: Alternating current.