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

50W

200W

150W

100W

50W

200W

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Measurement and Instrumentation
An induction wattmeter can be used for

Dc only

Both DC and AC

Any of the listed here

Ac only

Dc only

Both DC and AC

Any of the listed here

Ac only

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Measurement and Instrumentation
The effect of load resistance is important in measurement of

resistance of shunt.

both A and B.

resistance of ammeter.

resistance of shunt winding.

resistance of shunt.

both A and B.

resistance of ammeter.

resistance of shunt winding.

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Measurement and Instrumentation
Some wire- wound resistors have bifilar winding. This type of winding is used to

Increase the thermal stability

Reduce the inductance of winding

Double the power rating of the resistor

Reduce the tolerance

Increase the thermal stability

Reduce the inductance of winding

Double the power rating of the resistor

Reduce the tolerance

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Measurement and Instrumentation
In figure Z1 = 200∠60° ohm. Z2 = 400∠-90° ohm, Z3 = 300∠0° ohm. Then Z4 for bridge to be balanced is

300∠90° ohm.

150∠30° ohm.

600∠-150° ohm.

400∠-90° ohm.

300∠90° ohm.

150∠30° ohm.

600∠-150° ohm.

400∠-90° ohm.

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Measurement and Instrumentation
The operating voltage of a megger is about

100 V

6 V

12 V

40 V

100 V

6 V

12 V

40 V

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Measurement and Instrumentation

Measurement and Instrumentation An induction wattmeter can be used for

Measurement and Instrumentation The effect of load resistance is important in measurement of

Measurement and Instrumentation Some wire- wound resistors have bifilar winding. This type of winding is used to

Measurement and Instrumentation In figure Z1 = 200∠60° ohm. Z2 = 400∠-90° ohm, Z3 = 300∠0° ohm. Then Z4 for bridge to be balanced is

Measurement and Instrumentation The operating voltage of a megger is about

Measurement and Instrumentation
An induction wattmeter can be used for

Measurement and Instrumentation
The effect of load resistance is important in measurement of

Measurement and Instrumentation
Some wire- wound resistors have bifilar winding. This type of winding is used to

Measurement and Instrumentation
In figure Z1 = 200∠60° ohm. Z2 = 400∠-90° ohm, Z3 = 300∠0° ohm. Then Z4 for bridge to be balanced is

Measurement and Instrumentation
The operating voltage of a megger is about