Measurement and Instrumentation The total current I = I1 + I2 in a circuit is measured I1 = 150 ± 3A , I2 = 250 ± 4 A, where the limits of error are given as standard deviations. I is measured as (400 ± 2.24) A (400 ± 3) A (400 ±5) A (400 ± 1) A (400 ± 2.24) A (400 ± 3) A (400 ±5) A (400 ± 1) A ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An oscilloscope indicates DC value of voltage RMS value Average value Peak to peak value of voltage DC value of voltage RMS value Average value Peak to peak value of voltage ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Figure show an RC potentiometer to measure AC voltage. It is desire that Vo/Vi should be independent of frequency. The value of C shoud be 0.09 µF. 0.1 µF. 11 µF. 10 µF. 0.09 µF. 0.1 µF. 11 µF. 10 µF. 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 5 V, 1 ms. 5 V, 2 ms. 7.5 V, 2 ms. 10 V, 1 ms. 5 V, 1 ms. 5 V, 2 ms. 7.5 V, 2 ms. 10 V, 1 ms. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following devices may be used for extending the range of instruments? Current transformers Potential transformers All of the listed here Shunt Current transformers Potential transformers All of the listed here Shunt ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A mulliammeter can be used as Ohmmeter Wattmeter Voltmeter and ammeter Frequency meter Ohmmeter Wattmeter Voltmeter and ammeter Frequency meter ANSWER DOWNLOAD EXAMIANS APP
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