1. Electromagnetism Lecture#2 Instructor: Muhammad Mateen Yaqoob

2. Standards of Length, Mass, and Time MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE

3. Standards of Length, Mass, and Time MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE

4. Standards of Length, Mass, and Time MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE

10. Units of measurement SI fundamental units SI supplementary units MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE

11. Except for current which is a fundamental unit, all electrical and magnetic units are derived from the fundamental units. MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE Electrical quantities and derived units with SI symbols. Electric Quantities and Units

12. Units of measurement Magnetic quantities and derived units with SI symbols. Magnetic quantities and Units MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE

13. Scientific Notation Very large and very small numbers are represented with scientific Notation. In scientific notation, a quantity is expressed as a product of a number between 1 and 10 and a power of ten (10 x ). For Example 47,000,0.0 = 4.7 x 10 5 0.00022 = 2.2 x 10 -4 MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE

14. Power of Ten MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE

15. Examples Q 1 MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE

16. Q 2 Examples MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE

17. Examples Q 3 MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE

18. Engineering Notation Engineering notation is similar to scientific notation. However, in engineering notation a number can have from one to three digits to the left of the decimal point and the power-of-ten exponent must be a multiple of three. MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE

19. Examples Q 1 MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE

20. Examples Q 2 MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE

21. Metric Prefixes In engineering notation metric prefixes represent each of the most commonly used powers of ten. MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE

22. Examples Q 1 MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE

23. Metric Unit Conversion When converting from a larger unit to a smaller unit, move the decimal point to the right. Remember, a smaller unit means the number must be larger. MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE

24. Metric Unit Conversion When converting from a smaller unit to a larger unit, move the decimal point to the left. Remember, a larger unit means the number must be smaller. MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE

25. Metric Unit Conversion Q 1 MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE

26. Examples Q 2 MATEEN YAQOOB DEPARTMENT OF COMPUTER SCIENCE