Measurement and Instrumentation Some wire- wound resistors have bifilar winding. This type of winding is used to Reduce the tolerance Increase the thermal stability Double the power rating of the resistor Reduce the inductance of winding Reduce the tolerance Increase the thermal stability Double the power rating of the resistor Reduce the inductance of winding ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A moving iron ammeter may be compensated for frequency errors by A shunt resistance A series inductance Series resistance Shunt capacitance A shunt resistance A series inductance Series resistance Shunt capacitance ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Electrostatic instruments are used as Both ammeter and voltmeter Ammeters only Wattmeter only Voltmeters only Both ammeter and voltmeter Ammeters only Wattmeter only Voltmeters only ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A DC potentiometer is designed to measure up to about 2V with a slide wire of 800 mm. A standard cell of emf 1.18 V obtains balances at 600 mm. A test cell is seen to obtain balance at 680 mm. The emf of test cell is 1.5 V. 1.7 V. 1.34 V. 1 V. 1.5 V. 1.7 V. 1.34 V. 1 V. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation In DC potentiometer measurments, a second reading is often taken after reversing the polarities of the DC supply and the unknown voltage and the average of the two reading is taken. This is with a view of eliminate the effects of Stray magnetic fields. Errorneous standardisation. Stray thermal emfs. Ripples of the DC supply. Stray magnetic fields. Errorneous standardisation. Stray thermal emfs. Ripples of the DC supply. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The absolute measurement of resistance is done by Bridge Method Ohm’s law method Lorenz method Rayleigh method Bridge Method Ohm’s law method Lorenz method Rayleigh method ANSWER DOWNLOAD EXAMIANS APP
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