Measurement and Instrumentation In a ballistic galvanometer, the deflecting torque is proportional to Square-root of current through coil The current through coil Square of current through coil Sine of measured Square-root of current through coil The current through coil Square of current through coil Sine of measured ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Which of following is not correct? An ammeter should have a very low resitance. A shunt should have a very low resistance. An electronic voltmeter draw appreciable current from the source. Voltmeter should have very high resistance. An ammeter should have a very low resitance. A shunt should have a very low resistance. An electronic voltmeter draw appreciable current from the source. Voltmeter should have very high resistance. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The terminals across the source are ______________________________ if a current source is to be neglected. short circuited replaced by a capacitor open circuited replaced by a source resistance short circuited replaced by a capacitor open circuited replaced by a source resistance ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An ammeter of range 0-25 A has a guaranteed accuracy of 1% of full-scale reading. The current measured by the ammeter is 5 A. The limiting error in the reading is 6% 3% 4% 5% 6% 3% 4% 5% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a wheatstone bridge, a change of 6 Ω in the unknown arm of bridge is required to produce a change in deflection of 2.4 mm of the galvanometer. The sensitivity is 5.0 mm/Ω 0.4 mm/Ω 0.8 mm/Ω 2.5 mm/Ω 5.0 mm/Ω 0.4 mm/Ω 0.8 mm/Ω 2.5 mm/Ω ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In eddy current damping, disc or former is made of a material that is a Non conductor and non magnetic Conductor but magnetic Conductor but non magnetic Non conductor but magnetic Non conductor and non magnetic Conductor but magnetic Conductor but non magnetic Non conductor but magnetic ANSWER DOWNLOAD EXAMIANS APP
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