CameraIcon

SearchIcon

MyQuestionIcon

177

You visited us 177 times! Enjoying our articles? Unlock Full Access!

Propagation of Error

A 0 - 40A amm...

Question

A (0 - 40)A ammeter has a guaranteed accuracy error of 2% of the full scale reading. If the current measured by this instrument is 10 A, the value of relative limiting error in percentage will be

A

2%

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

4%

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

0.5%

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

8%

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D 8%
Ammeter is accurate upto value

$= \frac{2}{100} \times 40 = 0.8 A$

Relative limiting error

$= \frac{0.8}{10} \times 100 = 8 %$

Suggest Corrections

thumbs-up

1

Similar questions

Q. A 0 - 10 A ammeter has a guaranted accuracy of 1.5% of full scale reading. The current measured by the instrument is 2.5 A. The percentage limiting error in the measurement is

\pm

Q. A voltmeter having reading of 70 V on its 100 V range and an ammeter having reading of 80 mA on its 150 mA range are used to determine power dissipation in a resistor. Both these instruments are guaranteed to be accurate within

\pm 2 %

at full scale deflection. The limiting error (in percentage) in power measuement is _______

Q. A variable w is related to three other variables

x, y, z

w = x y / z

. The variables are measured with meters of accuracy

\pm 0.5

\pm 1

% of full scale value and

\pm 1.5

% reading . The actual readings of the three meters are 80, 20 and 50 with 100 being the full scale value for all three. The maximum limiting error in the measurement of

w

Q. A temperature sensor having a range of 0-100°C has a worst case accuracy specification of

\pm 1.0 %

of true value or

\pm 0.3 %

of full scale, whichever is higher. The sensitivity of the sensor is experimentally obtained by taking its readings at true temperatures 25°C and 75°C. The maximum error in sensitivity, expressed as percentage of its ideal value is

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Propagation of Error

MEASUREMENT

Watch in App

explore_more_icon

Explore more

Propagation of Error

Other Measurement

Join BYJU'S Learning Program

CrossIcon