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For the following questions answer them individually
A Meter has full scale deflection of $$90^\circ$$ at a current of 1A. The response of the meter is square law. Assuming spring control, the current for a deflection at $$45^\circ$$ will be
A Single-phase Energy meter is operating on 230 V, 50 Hz supply with a load of 20 A for two hours at UPF. The meter makes 1380 revolutions in that period. The meter constant is
In case of power measurements by two wattmeter method in a balanced 3-phase system with pure inductive load
It is required to measure temperature in the range of $$1300^\circ C$$ to $$1500^\circ C$$. The most suitable thermocouple to be used as transducer would be
Which dc motor will have highest percentage increase in input current for given percentage increase in torque
In a three phase delta transformer, one phase burns up. The transformer will supply
In an auto transformer, power is transferred through
In Scott connection, if the ratio of the main transformer is k, then the teaser transformer has transformation ratio of
With core type transformers, the limbs are stepped so as to
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