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?

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?

150W

100W

200W

50W

150W

100W

200W

50W

ANSWER DOWNLOAD EXAMIANS APP

Measurement and Instrumentation
The dynamometer principle can be used for

wattmeter only.

ammeter only.

voltmeter only.

ammeter, voltmeter and wattmeter.

wattmeter only.

ammeter only.

voltmeter only.

ammeter, voltmeter and wattmeter.

ANSWER DOWNLOAD EXAMIANS APP

Measurement and Instrumentation
A 50 Hz bar primary CT has a secondary with 500 turns. The secondary supplies 5 A current into a purely resistive burden of 1Ω. The magnetizing ampere-turn is 200. The phase angle between the primary and secondary current is

85.4o.

175.4o.

94.6o.

4.6o.

85.4o.

175.4o.

94.6o.

4.6o.

ANSWER DOWNLOAD EXAMIANS APP

Measurement and Instrumentation
If two 300V full scale voltmeters V1 and V2 having sensitivities of 100 kOhm/V and 150 kOhm/V are connected in series to measure 500V then

V1 = 0V and V2 = 0V.

V1 = 250V and V2 = 250V.

V1 = 300V and V2 = 200V.

V1 = 200V and V2 = 300V.

V1 = 0V and V2 = 0V.

V1 = 250V and V2 = 250V.

V1 = 300V and V2 = 200V.

V1 = 200V and V2 = 300V.

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

21.1 rpm.

18.2 rpm.

16.02 rpm.

12.8 rpm.

21.1 rpm.

18.2 rpm.

16.02 rpm.

12.8 rpm.

ANSWER DOWNLOAD EXAMIANS APP

Measurement and Instrumentation
The measurement of a quantity

is a comparison of an unknown quantity with known quantity.

is a comparison of an unknown quantity with another quantity.

none of these.

is a comparison of an unknown quantity with standard.

is a comparison of an unknown quantity with known quantity.

is a comparison of an unknown quantity with another quantity.

none of these.

is a comparison of an unknown quantity with standard.

ANSWER DOWNLOAD EXAMIANS APP

Measurement and Instrumentation

Measurement and Instrumentation The dynamometer principle can be used for

Measurement and Instrumentation A 50 Hz bar primary CT has a secondary with 500 turns. The secondary supplies 5 A current into a purely resistive burden of 1Ω. The magnetizing ampere-turn is 200. The phase angle between the primary and secondary current is

Measurement and Instrumentation If two 300V full scale voltmeters V1 and V2 having sensitivities of 100 kOhm/V and 150 kOhm/V are connected in series to measure 500V then

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

Measurement and Instrumentation The measurement of a quantity

Measurement and Instrumentation
The dynamometer principle can be used for

Measurement and Instrumentation
A 50 Hz bar primary CT has a secondary with 500 turns. The secondary supplies 5 A current into a purely resistive burden of 1Ω. The magnetizing ampere-turn is 200. The phase angle between the primary and secondary current is

Measurement and Instrumentation
If two 300V full scale voltmeters V1 and V2 having sensitivities of 100 kOhm/V and 150 kOhm/V are connected in series to measure 500V then

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

Measurement and Instrumentation
The measurement of a quantity