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 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. Both A and R are true and R is correct explanation of A. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which wave has the least form factor? Sine wave Square wave Rectangular wave Triangular wave Sine wave Square wave Rectangular wave Triangular wave ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Swamping resistance is used to compensate both A and B. error due to temperature true variations. error due to strong magnetic field. none of these. both A and B. error due to temperature true variations. error due to strong magnetic field. none of these. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance of a circuit is measured from the relation R= P/I2, where P is the power fed into the circuit and I is the current flowing through it. If the limiting errors in the measurement of power and current are respectively ± 1.0% and ± 1.0%, then what will be the limiting error in measurement of resistance ? ± 1.5% ±0.5% ± 3.0% ±3.5% ± 1.5% ±0.5% ± 3.0% ±3.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation To measure high frequency currents, we mostly use ______ ammeter. Dynamometer Moving iron Hot wire Thermocouple Dynamometer Moving iron Hot wire Thermocouple ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a dynamometer wattmeter, the moving coil is the Current coil and potential coil None of the listed here Current coil Potential coil Current coil and potential coil None of the listed here Current coil Potential coil ANSWER DOWNLOAD EXAMIANS APP
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