Measurement and Instrumentation The full-scale deflection current of an ammeter is 1 mA and its internal resistance is 100°hm. If this meter is to have full deflection at 5A, what is the value of the shunt resistance to be used? 1/49.99 ohms 49.99 Ohms 1 Ohm 2 Ohms 1/49.99 ohms 49.99 Ohms 1 Ohm 2 Ohms ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Dynamic errors are caused by observational error environmental error human error instrument not responding fast observational error environmental error human error instrument not responding fast ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A voltage of 2.70 V is being measured by an analog indicating instrument having a scale range of 0 – 5.0 V. If the instrument reads 2.65 V, then absolute error in measurement is 0.25V 0.01V 0.01V 0.05V 0.25V 0.01V 0.01V 0.05V ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The quantity 1/√(∈0 × μ0) in SI units has the none of these. speed of light. both ‘a’ and ‘b’. dimension LT-1. none of these. speed of light. both ‘a’ and ‘b’. dimension LT-1. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The current coil of a wattmeter is connected to the CT of R-phase. The potential coil is connected across Y and B phases. The wattmeter measures Power proportional to 3 phase power if the load is balanced Reactive power of R phase Active power of Y phase Active power in R phase Power proportional to 3 phase power if the load is balanced Reactive power of R phase Active power of Y phase Active power in R phase ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following is not correct? A shunt should have a very low resistance. An ammeter should have a very low resitance. Voltmeter should have very high resistance. An electronic voltmeter draw appreciable current from the source. A shunt should have a very low resistance. An ammeter should have a very low resitance. Voltmeter should have very high resistance. An electronic voltmeter draw appreciable current from the source. ANSWER DOWNLOAD EXAMIANS APP
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