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Quantities and Units

Quantities and Units
Seven thousand volts can be expressed as

7 kV
either 7 kV or 7 mV
7 mV
7 MV

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Quantities and Units
The number 65,000 expressed in scientific notation as a number between 1 and 10 times a power of ten is

650 × 103
6.5 × 104
0.65 × 104
65 × 104

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Quantities and Units
The number 4.38 × 10–3 expressed as a number having a power of 10–6 is

438 × 10–6
4,380 × 10–6
43,800 × 10–6
438,000 × 10–6

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Quantities and Units
Current is measured in

henries
amperes
volts
watts

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Quantities and Units
The quantity 43 × 10-3 is the same as

430
0.43
43000
0.043

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Quantities and Units
The number of kilowatts in 135 milliwatts is

0.00135 kW
0.0135 kW
1.35 × 10–4 kW
135 × 10–3 kW

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