Electrical Engineering > GATE 2015 SET-2 > Power Measurement
The coils of a wattmeter have resistances 0.01Ω and 1000Ω; their inductances may be neglected. The wattmeter is connected as shown in the figure, to measure the power consumed by a load, which draws 25A at power factor 0.8. The voltage across the load terminals is 30V. The percentage error on the wattmeter reading is ________.

Correct : 0.15

Similar Questions

Two wattmeter method is used for measurement of power in a balanced three-phase load supplied from a balanced three-phase system. If one of the wattmeters reads...
#370 MCQ
A 3-phase balanced load which has a power factor of 0.707 is connected to a balanced supply. The power consumed by the load is 5 kW. The power is measured by th...
#760 MCQ
While measuring power of a three-phase balanced load by the two-wattmeter method, the readings are 100W and 250W. The power factor of the load is ________.
#839 NAT

Related Topics

No tags found

Unique Visitor Count

Total Unique Visitors

Loading......