Measurement and Instrumentation A wheatstone bridge cannot be used for precision measurements because errors are introduced into on account of Resistance of connecting leads. All of above. Thermoelectric emfs. Contact resistance. Resistance of connecting leads. All of above. Thermoelectric emfs. Contact resistance. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A DC A-h meter is rated for 15 A, 250 V. The meter constant is 14.4 A-sec/rev. The meter constant at rated voltage may be expressed as 960 rev/KWh. 3600 rev/KWh. 1000 rev/KWh. 3750 rev/KWh. 960 rev/KWh. 3600 rev/KWh. 1000 rev/KWh. 3750 rev/KWh. 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 0.09 µF. 0.1 µF. 10 µF. 11 µF. 0.09 µF. 0.1 µF. 10 µF. 11 µF. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation If an inductance L is connected in one arm of bridge and resistance R1, R2, R3 in other three arms The bridge can not be balanced. The bridge can be balanced. The bridge is balanced for some specified value of R1, R2, R3. The bridge is balanced for some specified value of frequency. The bridge can not be balanced. The bridge can be balanced. The bridge is balanced for some specified value of R1, R2, R3. The bridge is balanced for some specified value of frequency. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation No eddy current and hysteresis losses occur in Moving iron instruments Electrodynamo meter instruments PMMC instruments Electrostatic instruments Moving iron instruments Electrodynamo meter instruments PMMC instruments Electrostatic instruments ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The quantity 1/√(∈0 × μ0) in SI units has the dimension LT-1. none of these. speed of light. both ‘a’ and ‘b’. dimension LT-1. none of these. speed of light. both ‘a’ and ‘b’. ANSWER DOWNLOAD EXAMIANS APP
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