Teaching HPSC Lecturer (Technical) Mock Test 2024 Electrical and Electronics Measurements Error Analysis
The pf of a load is measured by measuring voltage, current and power. The nominal values are 10 V, 1 A and 8 W respectively. The limiting errors in the readings of voltmeter, ammeter and wattmeter are ±2 %, ±3 % and ±4 % respectively. The limiting error in the measurement of pf is
1
±2.38%
2
±5.23%
3
±10.5%
4
±9%
5
±18%
5
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