An alternating current or voltage_____________________?
Avaries in magnitude alone
Bchanges its magnitude harmonically and reverses its direction of flow after regularly recurring intervals
Cchanges its direction again and again
Dfluctuates off and on
Correct answer
C. changes its direction again and again
Explanation
changes its direction again and again is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.