Measurement and Instrumentation The problem of Electrostatic coupling in a transformer is acute at High frequencies Power frequencies High load on the transformer Low frequencies High frequencies Power frequencies High load on the transformer Low frequencies ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In a dynamometer wattmeter, the moving coil is the Current coil and potential coil None of the listed here Potential coil Current coil Current coil and potential coil None of the listed here Potential coil Current coil ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Two voltmeters have the same range 0-400V. The internal impedance are 30,000 Ohms and 20,000 Ohms. If they are connected in series and 600V be applied across them, the readings are 300V each 360V and 240V 400V and 200V One of the meters out of the range and other 100V 300V each 360V and 240V 400V and 200V One of the meters out of the range and other 100V ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation To the y input of a CRO a signal defined by 10sin100t is applied. To the x input the signal 10cos100t is fed. The gain for both x-channel and y-channel is the same. The screen shows a straight line. sinisoidal. a circle. an ellipse. a straight line. sinisoidal. a circle. an ellipse. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A CRO can display Time invariant signals Both AC and DC signals DC signals AC signals Time invariant signals Both AC and DC signals DC signals AC signals ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The internal resistance of a milli-ammeter must be very low for high precision. minimum effect on the current in the circuit. high sensitivity. high accuracy. high precision. minimum effect on the current in the circuit. high sensitivity. high accuracy. ANSWER DOWNLOAD EXAMIANS APP
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