Measurement and Instrumentation When testing a coil having a resistance of 10 ohms, resonance occurred when the oscillator frequency was 10 MHz and rotating capacitor was set at 500/2π pF. The effective value of the Q of the coil is 31.4. 54.2. 25.4. 20. 31.4. 54.2. 25.4. 20. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The form factor in AC is the ratio of Rms value to peak value Peak value to average value Rms value to average value Peak value to rms value Rms value to peak value Peak value to average value Rms value to average value Peak value to rms value ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A sampling wattmeter is used to measure the average power of a load. The peak to peak voltage of a square wave is 10 V and the current is triangular wave of 5 Amp P-P as shown in the figure. The period is 20 ms. The reading in W will be 50 W. 100 W. 25 W. 0 W. 50 W. 100 W. 25 W. 0 W. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A moving iron ammeter may be compensated for frequency errors by Shunt capacitance A shunt resistance Series resistance A series inductance Shunt capacitance A shunt resistance Series resistance A series inductance ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A high frequency AC signal is applied to a PMMC instrument. The RMS value of the AC signal is 2V, the reading of the instrument is Zero. 2√2V. 2V. √2V. Zero. 2√2V. 2V. √2V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Null type recorders are LVDT recorders. bridge recorders. potentiometric recorders. any one of the above. LVDT recorders. bridge recorders. potentiometric recorders. any one of the above. ANSWER DOWNLOAD EXAMIANS APP
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