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Quantities and Units

Quantities and Units
The number 4,500,000 can be expressed as

4.5 × 106
either 4,500 × 104 or 4.5 × 106
4.5 × 10-3
4,500 × 106

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Quantities and Units
When these numbers are added, (87 × 105) + (2.5 × 106), the result is

112 × 105
1.12 × 104
11.2 × 105
1,120 × 106

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Quantities and Units
When converting 7,000 nA to microamperes, the result is

0.007 µA
0.7 µA
7 µA
700 µA

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Quantities and Units
The number 3.2 × 10–5 A expressed using a metric prefix is

3.3 µA
320 mA
32 µA
3,200 mA

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Quantities and Units
Resistance is measured in

ohms
hertz
henries
watts

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Quantities and Units
The number of megohms in 0.03 kilohms is

3 × 10–5 M
0.0002 M
0.00002 M
either 0.00002 M or 0.0002 M

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