1. What is the difference between accuracy and precision?

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3. Young, Hugh D., Statistical Treatment of Experimental Data. New York. McGr
1. Bartholomew, Davis, Electrical Measurements and Instrumentation, chaps. 1,2
2. Maloney, Timothy J., Electric Circuits: Principles and Applications, chap. I. Englev
A. Calculate the power dissipation of the resistor. Give only significant figures in
6, What voltage would a 20,000-1/V meter on a 0-1-V scale show in the circuit of
34.002 µF, and 850 nF, with an uncertainty of one digit in the last place. What is
5. A voltage drop of 112.5 V is measured across a resistor passing a current of 162
4. Four capacitors are placed in parallel. The capacitor values are 36.3 uF. 3.85 pF.
Measurement and Error
18
um
REFERENCES
ton: Allyn and Bacon, Inc., 1963.
Chff, NJ: Prentice-Hall, Inc., 1984.
mer
Hill Book Company, Inc., 1962.
E
rea
QUESTIONS
olt
1. What is the difference between accuracy and precision?
2. List four sources of possible errors in instruments.
3. What are the three general classes of errors?
4. Define
(a) instrumental error,
(c) calibration error,
(e) random error,
a c
wl-
(b) limiting error,
(d) environmental error,
Type of
ne
error
( probable error.
PROBLEMS
1. A 0-1-mA milliammeter has 100 divisions which can casily be read to the nearet
division. What is the resolution of the meter?
2. A digital voltmeter has a rcad-out range from 0 to 9.999 counts. Determine te
resolution of the instrument in volts when the full-scale reading is 9.999 V.
3, State the number of significant figures in each of the following:
(a) 542,
(e) 27.25,
(e) 40 x 10,
(b) 0.65,
(d) 0.00005,
(5 20,000.
the total capacitance? Give only the significant figures in the answer.
the answer.
Fig. Pl-6?
1 MA
Meter
5 v.
100 k2
Figure P 1-6
Transcribed Image Text:3. Young, Hugh D., Statistical Treatment of Experimental Data. New York. McGr 1. Bartholomew, Davis, Electrical Measurements and Instrumentation, chaps. 1,2 2. Maloney, Timothy J., Electric Circuits: Principles and Applications, chap. I. Englev A. Calculate the power dissipation of the resistor. Give only significant figures in 6, What voltage would a 20,000-1/V meter on a 0-1-V scale show in the circuit of 34.002 µF, and 850 nF, with an uncertainty of one digit in the last place. What is 5. A voltage drop of 112.5 V is measured across a resistor passing a current of 162 4. Four capacitors are placed in parallel. The capacitor values are 36.3 uF. 3.85 pF. Measurement and Error 18 um REFERENCES ton: Allyn and Bacon, Inc., 1963. Chff, NJ: Prentice-Hall, Inc., 1984. mer Hill Book Company, Inc., 1962. E rea QUESTIONS olt 1. What is the difference between accuracy and precision? 2. List four sources of possible errors in instruments. 3. What are the three general classes of errors? 4. Define (a) instrumental error, (c) calibration error, (e) random error, a c wl- (b) limiting error, (d) environmental error, Type of ne error ( probable error. PROBLEMS 1. A 0-1-mA milliammeter has 100 divisions which can casily be read to the nearet division. What is the resolution of the meter? 2. A digital voltmeter has a rcad-out range from 0 to 9.999 counts. Determine te resolution of the instrument in volts when the full-scale reading is 9.999 V. 3, State the number of significant figures in each of the following: (a) 542, (e) 27.25, (e) 40 x 10, (b) 0.65, (d) 0.00005, (5 20,000. the total capacitance? Give only the significant figures in the answer. the answer. Fig. Pl-6? 1 MA Meter 5 v. 100 k2 Figure P 1-6
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