Measurement and Instrumentation Kelvin’s double bridge is used to measure low resistance because effect of contact and lead resistance is eliminated. resistance variation due to temperature. there is no thermo electric emf. it has high sensitivity. effect of contact and lead resistance is eliminated. resistance variation due to temperature. there is no thermo electric emf. it has high sensitivity. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Unit of deflection sensitivity of a CRO is meter / volt. V / mm. mm per mV. mm / V. meter / volt. V / mm. mm per mV. mm / V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The terminals across the source are ______________________________ if a current source is to be neglected. open circuited short circuited replaced by a capacitor replaced by a source resistance open circuited short circuited replaced by a capacitor replaced by a source resistance ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The expected value of the voltage across a resistor is 80 V, and the measured value is 79 V. What is the percentage error and relative accuracy of the measurement ? 1.25% & 98.75% 1.5% & 98.75% 1.5% & 99% 1.25% & 98.25% 1.25% & 98.75% 1.5% & 98.75% 1.5% & 99% 1.25% & 98.25% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The total current I = I1 + I2 in a circuit is measured I1 = 150 ± 3A , I2 = 250 ± 4 A, where the limits of error are given as standard deviations. I is measured as (400 ±5) A (400 ± 3) A (400 ± 1) A (400 ± 2.24) A (400 ±5) A (400 ± 3) A (400 ± 1) A (400 ± 2.24) A ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation How many time-base circuits does a dual face CRO can have? 4. 1. 3. 2. 4. 1. 3. 2. ANSWER DOWNLOAD EXAMIANS APP
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