Measurement and Instrumentation A dynamometer wattmeter can be used for Both DC and AC Any of the listed here DC only AC only Both DC and AC Any of the listed here DC only AC only ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation With a sweep time 10ms across the screen the approx. horizontal sawtooth frequency will be 50Hz 500Hz 100Hz 1kHz 50Hz 500Hz 100Hz 1kHz ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a moving iron meter, the deflecting torque is proportional to Current through the coil Sine of the measurand Square of the current through the coil Squareroot of the measurand Current through the coil Sine of the measurand Square of the current through the coil Squareroot of the measurand 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 85.4o. 94.6o. 175.4o. 4.6o. 85.4o. 94.6o. 175.4o. 4.6o. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A DC potentiometer is designed to measure up to about 2V with a slide wire of 800 mm. A standard cell of emf 1.18 V obtains balances at 600 mm. A test cell is seen to obtain balance at 680 mm. The emf of test cell is 1.34 V. 1 V. 1.5 V. 1.7 V. 1.34 V. 1 V. 1.5 V. 1.7 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In DC potentiometer measurments, a second reading is often taken after reversing the polarities of the DC supply and the unknown voltage and the average of the two reading is taken. This is with a view of eliminate the effects of Ripples of the DC supply. Stray thermal emfs. Errorneous standardisation. Stray magnetic fields. Ripples of the DC supply. Stray thermal emfs. Errorneous standardisation. Stray magnetic fields. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS