Measurement and Instrumentation Some wire- wound resistors have bifilar winding. This type of winding is used to Reduce the inductance of winding Increase the thermal stability Double the power rating of the resistor Reduce the tolerance Reduce the inductance of winding Increase the thermal stability Double the power rating of the resistor Reduce the tolerance ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The total current I = I1 + I2 in a circuit is measured as I1 = 150 ± 1A , I2 = 250 ± 2A, where the limits of error are as standard deviations. I is measured as (400 ± 3) A (400 ± 1.5) A (400 ± 1) A (400 ± 2.24) A (400 ± 3) A (400 ± 1.5) A (400 ± 1) A (400 ± 2.24) A ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a moving coil instrument, the deflecting torque is proportional to Sine of the measurand Squareroot of the current Current Square of the current Sine of the measurand Squareroot of the current Current Square of the current ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The internal resistance of Weston standard cell is of order of 10 ohm. 1 ohm. 1000 ohm. 100 ohm. 10 ohm. 1 ohm. 1000 ohm. 100 ohm. 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 Which of the following devices may be used for extending the range of instruments? Shunt All of the listed here Potential transformers Current transformers Shunt All of the listed here Potential transformers Current transformers ANSWER DOWNLOAD EXAMIANS APP
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