Measurement and Instrumentation In eddy current damping, disc or former is made of a material that is a Conductor but magnetic Non conductor and non magnetic Non conductor but magnetic Conductor but non magnetic Conductor but magnetic Non conductor and non magnetic Non conductor but magnetic Conductor but non magnetic ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation One single phase wattmeter operating on 230V and 5A for 5 hours makes 1940 revolutions. Meter constant in revolutions is 400. What is the power factor of the land? 1 0.73 0.84 0.65 1 0.73 0.84 0.65 ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Systematic errors are observational errors. instrument errors. environmental errors. All of these observational errors. instrument errors. environmental errors. All of these ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The meter constant of a single phase 240 V induction watthour meter is 400 revolutions per KWh. The speed of the meter disc for a current of 10 Amperes of 0.8 p.f lagging will be 12.8 rpm. 18.2 rpm. 21.1 rpm. 16.02 rpm. 12.8 rpm. 18.2 rpm. 21.1 rpm. 16.02 rpm. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a ballistic galvanometer, the deflecting torque is proportional to Square of current through coil Sine of measured The current through coil Square-root of current through coil Square of current through coil Sine of measured The current through coil Square-root of current through coil ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The problem of Electrostatic coupling in a transformer is acute at Low frequencies High frequencies Power frequencies High load on the transformer Low frequencies High frequencies Power frequencies High load on the transformer ANSWER DOWNLOAD EXAMIANS APP
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