Measurement and Instrumentation To measure high frequency currents, we mostly use ______ ammeter. Moving iron Thermocouple Dynamometer Hot wire Moving iron Thermocouple Dynamometer Hot wire ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation No eddy current and hysteresis losses occur in PMMC instruments Electrostatic instruments Moving iron instruments Electrodynamo meter instruments PMMC instruments Electrostatic instruments Moving iron instruments Electrodynamo meter instruments ANSWER DOWNLOAD EXAMIANS APP
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 Moving iron instruments have _____ scale. Squared None of the listed here Log Uniform Squared None of the listed here Log Uniform ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation It is found that 10A current passes through a resistor of 10°hms. The resistor has 5% tolerance . The error in measurement of current can be as high as 5%. What is max error in measurement of power, calculated from measured value of I and the nominal value of resistor? 50W 150W 200W 100W 50W 150W 200W 100W ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The problem of Electrostatic coupling in a transformer is acute at Low frequencies High load on the transformer High frequencies Power frequencies Low frequencies High load on the transformer High frequencies Power frequencies ANSWER DOWNLOAD EXAMIANS APP