The frequency of an alternating voltage is 50 cycles/sec and its ampli – McqOptions

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1.	The frequency of an alternating voltage is 50 cycles/sec and its amplitude is 120V. Then the r.m.s. value of voltage is [BHU 1999; MH CET (Med.) 2001; KCET (Med.) 2001; MH CET 2003]
A.	101.3V
B.	84.8V
C.	70.7V
D.	56.5V
Answer» C. 70.7V

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