Electronics and Communication Engineering - Measurements and Instrumentation - Discussion
Discussion Forum : Measurements and Instrumentation - Section 6 (Q.No. 23)
23.
A permanent magnet moving coil meter can be used as
Discussion:
13 comments Page 1 of 2.
Electo said:
9 years ago
Yes, only DC but can be for low-frequency AC if used along with a rectifier type of instrument but in this question, the answer should be option B.
(1)
Ppdcet said:
4 years ago
I too agree, The correct answer must be B.
(1)
Rit said:
10 years ago
PMMC type can be used for direct current measurements only.
Deepesh said:
10 years ago
Yes @Rit, it can only be used for dc measurement as during the negative half cycle of ac direction of torque applied will be reversed and average value of the applied torque during positive and negative half will be zero, and there will be no deflection in the pointer.
Rrrammu said:
8 years ago
It must be B.
Pkn said:
8 years ago
Yes, B is the answer.
Parashu said:
7 years ago
The correct answer must be B.
Abhishek said:
6 years ago
Place only use for DC, not for ac.
PPDV said:
5 years ago
Yes, B is the answer. I too agree.
PPDV said:
5 years ago
I too agree, The correct answer must be B.
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