Electronics and Communication Engineering - Measurements and Instrumentation - Discussion

Discussion Forum : Measurements and Instrumentation - Section 3 (Q.No. 24)
24.
In household energy meters the flux of series magnet is in phase with current but the flux of shunt magnet lags the voltage by 88°. The reading of energy meters
will be correct
will have a negative error
will have a positive error
may have positive or negative error
Answer: Option
Explanation:

Since angle is less than 90°, reading will be less. Therefore error is negative and correction is positive.

Discussion:
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