Measurement and Instrumentation Wagner earthing device is used to eliminate errors due to None of these Both A and B Electromagnetic coupling Electrostatic coupling None of these Both A and B Electromagnetic coupling Electrostatic coupling ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For a circuit given that I = 2 ± 5 % A, R = 100 ± 0.2 % Ω the limiting error in the power dissipation I2 R in the resistor R is 10.2% 25.2% 1.2% 5.2% 10.2% 25.2% 1.2% 5.2% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of the following cannot be measured by multimeters? Voltage Frequency Current Resistance Voltage Frequency Current Resistance ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A sinusoidal signal waveform, when observed on an oscilloscope, has a peak to peak amplitude of 6 cm. If the vertical sensitivity setting is 5 v/cm, then rms value of the voltage will be 15 V. 12.6 V. 10.6 V. 11.1 V. 15 V. 12.6 V. 10.6 V. 11.1 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 magnetic fields. Stray thermal emfs. Errorneous standardisation. Ripples of the DC supply. Stray magnetic fields. Stray thermal emfs. Errorneous standardisation. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation What is the expression for momentum? mass × acceleration force × displacement mass × velocity change of velocity / time mass × acceleration force × displacement mass × velocity change of velocity / time ANSWER DOWNLOAD EXAMIANS APP
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