Measurement and Instrumentation Resistances can be measured with the help of Wattmeters Ohmmeters and resistance bridges Ammeters Voltmeters Wattmeters Ohmmeters and resistance bridges Ammeters Voltmeters ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Figure show an RC potentiometer to measure AC voltage. It is desire that Vo/Vi should be independent of frequency. The value of C shoud be 10 µF. 0.09 µF. 0.1 µF. 11 µF. 10 µF. 0.09 µF. 0.1 µF. 11 µF. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation For handling greater currents induction watt-meters are used in conjunction with Power transformers Either of the above Potential transformers Current transformers Power transformers Either of the above Potential transformers Current transformers ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In figure Z1 = 200∠60° ohm. Z2 = 400∠-90° ohm, Z3 = 300∠0° ohm. Then Z4 for bridge to be balanced is 400∠-90° ohm. 150∠30° ohm. 600∠-150° ohm. 300∠90° ohm. 400∠-90° ohm. 150∠30° ohm. 600∠-150° ohm. 300∠90° ohm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The errors introduced by an instrument fall in which category ? Gross errors Environmental errors Systematic errors Random errors Gross errors Environmental errors Systematic errors Random errors 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 ± 3) A (400 ± 1) A (400 ± 2.24) A (400 ±5) A (400 ± 3) A (400 ± 1) A (400 ± 2.24) A (400 ±5) A ANSWER DOWNLOAD EXAMIANS APP
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