What is the rms voltage value of an ac signal whose peak oscilloscope display uses 3 major divisions above the zero setting? (V/cm = 5)

What is the rms voltage value of an ac signal whose peak oscilloscope

1.	What is the rms voltage value of an ac signal whose peak oscilloscope display uses 3 major divisions above the zero setting? (V/cm = 5)
A.	5.3 V
B.	10.6 V
C.	15.0 V
D.	21.2 V
Answer» C. 15.0 V