Measurement and Instrumentation
The circuit in figure is used to measure the power consumed by the load. The current coil and the voltage coil of the wattmeter have 0.02 Ω and 1000 Ω resistance respectively. The measured power compared to the load power will be

 0.2% less.
 0.4 more.
 0.4% less.
 0.2% more.

ANSWER DOWNLOAD EXAMIANS APP

Measurement and Instrumentation
A resistance is measured by the voltmeter-ammeter method employing dc excitation and a voltmeter of very high resistance connected directly across the unknown resistance. If the voltmeter and ammeter reading are subject to maximum possible errors of ± 2.4 % and ± 1.0 % respectively, then the magnitude of the maximum possible percentage error in the value of resistance deduced from the measurement is nearly

 ± 3.4%
 ± 1%
 ± 1.4%
 ± 2.4%

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Measurement and Instrumentation