Measurement and Instrumentation A sinusoidal signal waveform, when observed on an oscilloscope, has a peak to peak amplitude of 6 cm. If the vertical sensitivity setting is 5 v/cm, then rms value of the voltage will be 12.6 V. 10.6 V. 15 V. 11.1 V. 12.6 V. 10.6 V. 15 V. 11.1 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The terminals across the source are ______________________________ if a current source is to be neglected. short circuited replaced by a source resistance open circuited replaced by a capacitor short circuited replaced by a source resistance open circuited replaced by a capacitor ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A galvanometer with a full scale current of 10 mA has a resistance of 1000 Ω. The multiplying power (the ratio of measured current to galvanometer current) of 100 Ω shunt with this galvanometer is 11. 10. 110. 100. 11. 10. 110. 100. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The time/div and voltage axes of an oscilloscope have been creased. A student connects a 1 KHz, 5 V P-P square wave calibrition pulse to channel-1 of the scope and observes the screen to be as shown in the upper trace of figure. An unknown signal is connected to channel-2 (lower trace) of the scope. If the time/div and V/div on both channels are the same, the amplitude (P-P) and period of the unknown signal are respectively 10 V, 1 ms. 7.5 V, 2 ms. 5 V, 1 ms. 5 V, 2 ms. 10 V, 1 ms. 7.5 V, 2 ms. 5 V, 1 ms. 5 V, 2 ms. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The maximum percentage error in the sum of two voltage measurements when V1 = 100V ± 1% and V2 = 80V ± 5% is ± 2.8% ± 3% ± 6% ± 4% ± 2.8% ± 3% ± 6% ± 4% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a moving iron meter, the deflecting torque is proportional to Square of the current through the coil Current through the coil Sine of the measurand Squareroot of the measurand Square of the current through the coil Current through the coil Sine of the measurand Squareroot of the measurand ANSWER DOWNLOAD EXAMIANS APP
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