Measurement and Instrumentation Assertion (A): A hot wire ammeter has a cramped scale. Reason (R): The heat is proportional to square of current. Both A and R are true and R is correct explanation of A. Both A and R are true and R is not correct explanation of A. A is false and R is ture. A is ture and R is false. Both A and R are true and R is correct explanation of A. Both A and R are true and R is not correct explanation of A. A is false and R is ture. A is ture and R is false. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The pointer of an indicating instrument is generally made of _______ Aluminium Soft steel Silver Copper Aluminium Soft steel Silver Copper ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For a circuit given that I = 2 ± 5 % A, R = 100 ± 0.2 % Ω the limiting error in the power dissipation I2 R in the resistor R is 10.2% 25.2% 1.2% 5.2% 10.2% 25.2% 1.2% 5.2% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The rectifier instrument is not free from Frequency error Temperature error All of the listed here Wave shape error Frequency error Temperature error All of the listed here Wave shape error ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation It is found that 10A current passes through a resistor of 10°hms. The resistor has 5% tolerance . The error in measurement of current can be as high as 5%. What is max error in measurement of power, calculated from measured value of I and the nominal value of resistor? 150W 50W 100W 200W 150W 50W 100W 200W ANSWER DOWNLOAD EXAMIANS APP
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 0.4 more. 0.2% less. 0.4% less. 0.2% more. 0.4 more. 0.2% less. 0.4% less. 0.2% more. ANSWER DOWNLOAD EXAMIANS APP
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