Measurement and Instrumentation In a moving coil instrument, the deflecting torque is proportional to Sine of the measurand Current Square of the current Squareroot of the current Sine of the measurand Current Square of the current Squareroot of the current ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A moving coil of a meter has 100 turns, and a length and depth of 10 mm and 20 mm respectively. It is positioned in a uniform radial flux density of 200 mT. The coil carries a current of 50 mA. The torque on the coil is 1 µNm. 100 µNm. 200 µNm. 2 µNm. 1 µNm. 100 µNm. 200 µNm. 2 µNm. 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, 2 ms. 10 V, 1 ms. 5 V, 1 ms. 7.5 V, 2 ms. 5 V, 2 ms. 10 V, 1 ms. 5 V, 1 ms. 7.5 V, 2 ms. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A wheatstone bridge cannot be used for precision measurements because errors are introduced into on account of All of above. Contact resistance. Resistance of connecting leads. Thermoelectric emfs. All of above. Contact resistance. Resistance of connecting leads. Thermoelectric emfs. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A DC A-h meter is rated for 15 A, 250 V. The meter constant is 14.4 A-sec/rev. The meter constant at rated voltage may be expressed as 3600 rev/KWh. 960 rev/KWh. 1000 rev/KWh. 3750 rev/KWh. 3600 rev/KWh. 960 rev/KWh. 1000 rev/KWh. 3750 rev/KWh. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An instrument to be used for measurement and control should preferably have Non-linear output Linear output and fast response A highly damped response Dead zone and dead time Non-linear output Linear output and fast response A highly damped response Dead zone and dead time ANSWER DOWNLOAD EXAMIANS APP
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