| Home -> Amateur Radio Exams -> Amateur Extra -> Exam Review Question |
 | Amateur Radio Exam
Amateur Extra Class Exam Question Pool Review
Question E8A02:
What is a wave called that abruptly changes back and forth between two voltage levels and remains an equal time at each level?
Answers:
A.A sine wave
B.A cosine wave
C.A square wave
D.A sawtooth wave
Correct answer is:C
    |