The periodic square wave is applied across the terminals of a 15 Ω resistor. The value of Vm is 60 V and T is 5 ms. The RMS voltage is:

The periodic square wave is applied across the terminals of a 15 Ω re

1.	The periodic square wave is applied across the terminals of a 15 Ω resistor. The value of Vm is 60 V and T is 5 ms. The RMS voltage is:
A.	60 V
B.	12 V
C.	30 V
D.	15 V
Answer» D. 15 V