Electronics  Quantities and Units
Exercise :: Quantities and Units  General Questions
11. 
The number 14.8 can also be expressed as 
A. 
1.48 × 10^{–1}  B. 
1.48 × 10^{0}  C. 
1.48 × 10^{1}  D. 
1.48 × 10^{2} 
Answer: Option C
Explanation:

12. 
The digits in a measured number that are known to be correct are called 
A. 
accuracy digits  B. 
significant digits  C. 
error digits  D. 
precision digits 
Answer: Option B
Explanation:

13. 
Which of the following is expressed in engineering notation? 
A. 
470 × 10^{5}  B. 
82 × 10^{–2}  C. 
9.1 × 10^{–6}  D. 
14.7 × 10^{8} 
Answer: Option C
Explanation:

14. 
The unit for frequency is the 
Answer: Option A
Explanation:

15. 
Add 21 mA and 8000 A and express the result in milliamperes. 
Answer: Option C
Explanation:
