Note: 240 K and 240 °C and 240 °F are not the same values. There are certain conversion formulae for finding equivalent temperatures given on one scale to the others.
5. Current: symbol (A). Read as Ampere. It is capital A. Ampere is used for both alternate and direct current measurements. Writing 10 A or 10 Ampere is correct. 10 Amp. and 10 Amps. is not correct.
6. Volt: symbol (V). Read as Volt. It is capital V. 220 V or 220 Volt is correct.
220 Vol. or 220 v is not correct.
Note: While noting down the measurement data, the type Alternate Current (symbol: ac) and Direct Current (symbol: dc) are used for clarifications. For example, 12 Vdc and 220 Vac are correct. 12VDC and 220VAC and 12vdc and 220vdc etc. are not correct.
7. Electrical Power: symbol (W). Read as Watt. It is capital W. Writing 100 W and 100 Watt is correct. 50 w or 50 Wt. or 50 Watts is not correct.
8. Volume: symbol (L). Read as Litre. It is capital L. Writing 10 L and 10 Litre is correct. 10 l or 10 lt. or 10 Litres or 10 ltr or 10 10 lit are incorrect forms.
Note: there are other base and derived units which need clarifications about their symbols and these will be shared shortly in some other article.
How to write numbers in the SI system of units? The followings are the rules and examples are provided for registering the numbers for science, engineering, technology-related measurements. This set of rules does not apply to financial data.
