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 A 50 Hz bar primary CT has a secondary with 500 turns. The secondary supplies 5 A current into a purely resistive burden of 1Ω. The magnetizing ampere-turn is 200. The phase angle between the primary and secondary current is 175.4o. 94.6o. 4.6o. 85.4o. 175.4o. 94.6o. 4.6o. 85.4o. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In flux meter, the controlling torque is produced by crossed coil mechanism. weight attached to the moving coil. not provided at all. spring. crossed coil mechanism. weight attached to the moving coil. not provided at all. spring. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A PMMC instrument can be used as flux meter By making control springs of large moment of inertia By using a high series resistance By using a low resistance shunt By eliminating the control springs By making control springs of large moment of inertia By using a high series resistance By using a low resistance shunt By eliminating the control springs ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The limiting errors of measurement of power consumed by and the current passing through a resistance are ±1.5% and ±1% respectively. What is the limiting error ( in %) of measurement of resistance ? ± 1.5% ± 1% ± 2.5% ±3.5% ± 1.5% ± 1% ± 2.5% ±3.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation When using ohmmeter, applied voltage is to be disconnected from the circuit because None of these Voltage source will increase resistance Current will decrease resistance The ohmmeter has its own internal battery None of these Voltage source will increase resistance Current will decrease resistance The ohmmeter has its own internal battery ANSWER DOWNLOAD EXAMIANS APP
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