Electronics and Communication Engineering - Measurements and Instrumentation - Discussion

Discussion Forum : Measurements and Instrumentation - Section 3 (Q.No. 44)
44.
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
about 6.82 V
about 7.1 V
about 6.5 V
about 10 V
Answer: Option
Explanation:

Peak value of triangular wave is twice average value = 2 x 6.144 = 12.288 V rms value of triangular wave is peak value divided by 3 .

Therefore, reading .

Discussion:
Be the first person to comment on this question !

Post your comments here:

Your comments will be displayed after verification.