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% less.
 0.4 more.
 0.2% more.

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Measurement and Instrumentation
A resistance of 105 ohms is specified using significant figures as indicated below : 1. 105 ohms 2. 105.0 ohms 3. 0.000105 mega ohms Among these,

 1 represents greater precision than 2 and 3.
 2 and 3 represent greater precision than 1.
 1, 2 and 3 represent same precision.
 2 represents greater precision but 1 and 3 represent same precision.

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