alleryStart learning →A wall outlet in a house supplies current that repeatedly reverses its direction of flow. What is this kind of current called?
ADirect current
BStatic electricity
CAlternating current
DConventional current
Answer & Solution
Correct answer: C. Alternating current
1. Current that periodically reverses its direction of flow is alternating current, AC.
2. Household electricity is AC; most residential power around the world is delivered this way.
3. Direct current flows in only one direction, so it is the opposite of what the outlet supplies.
4. Conventional current only names the assumed direction positive charge would flow; it is not a type of supply.
_Source: OpenStax College Physics (CC BY 4.0), Ch 20 "Electric Current, Resistance, and Ohm's Law", section 20.5 Alternating Current versus Direct Current_
Keep practising Electric Current, Resistance, and Ohm's Law
Browse all Electric Current, Resistance, and Ohm's Law questions for ASVAB, or explore more Physics topics.
Related questions
Sort AC from DCA 1200-W toaster runs for 1 minute to make a slice of toast. How much electrical energy doFuses and circuit breakers carry a rating that tells what they protect against. In which uMany electrical safety rules set the maximum allowed shock current at which value?Worn insulation lets a short circuit form across 240-V AC through a resistance of just 0.2A technician standing on a rubber mat has a total resistance of 300 kilohms. What current A 500-W room heater runs on 120-V AC power. What peak current does it draw?A cheap extension cord made with thinner wire has a resistance of 0.300 ohm. How much powe