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 × 100
C. 1.48 × 101
D. 1.48 × 102

Answer: Option C

Explanation:

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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:

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13. 

Which of the following is expressed in engineering notation?

A. 470 × 105
B. 82 × 10–2
C. 9.1 × 10–6
D. 14.7 × 108

Answer: Option C

Explanation:

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14. 

The unit for frequency is the

A. hertz
B. ampere
C. watt
D. second

Answer: Option A

Explanation:

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15. 

Add 21 mA and 8000 mu.gifA and express the result in milliamperes.

A. 21.8 mA
B. 218 mA
C. 29 mA
D. 290 mA

Answer: Option C

Explanation:

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