A rectifier voltmeter using bridge rectifier and PMMC meter is calibrated to read rms value of sine wave.
A triangular wave is applied to it and it reads 6.82 V.
The rms value of triangular wave is
A. about 6.82 V
B. about 7.1 V
C. about 6.5 V
D. about 10 V
Share your understanding of this question with the correct explanation.