Measurement and Instrumentation To measure 5 volts, if one selects a 0-100 volt range voltmeter which is accurate with in ± 1%, then the error in this measurement may be up to ± 7.5 % ± 20% ± 1.5% ± 2.5% ± 7.5 % ± 20% ± 1.5% ± 2.5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A moving iron ammeter produces a full scale torque of 240 μNm with a deflection of 120° at a current of 10 A. The rate of change of self induction (μH/radian) of the instrument at full scale is 12.0 μH/radian. 2.0 μH/radian. 4.8 μH/radian. 114.6 μH/radian. 12.0 μH/radian. 2.0 μH/radian. 4.8 μH/radian. 114.6 μH/radian. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100°hm. This is to have full deflection when 100V is measured. What is the value of series resistor to be used? 99.99 ohms 99.99 K ohms 100 ohms 100 K ohms 99.99 ohms 99.99 K ohms 100 ohms 100 K ohms 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 Peak value to rms value Rms value to average value Rms value to peak value Peak value to average value Peak value to rms value Rms value to average value ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Electrostatic instruments are normally used for Low voltage measurements High voltage measurements Low current measurements High current measurements Low voltage measurements High voltage measurements Low current measurements High current measurements ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The resistance in the circuit of the moving coil of a dynamometer wattmeter should be High Low None of the listed here Almost zero High Low None of the listed here Almost zero ANSWER DOWNLOAD EXAMIANS APP
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