13.4 CHAPTER 13. ELECTRODYNAMICS
More practice video solutions or help at http://www.everythingscience.co.za(1.) 01yt (2.) 01yu (3.) 01yv (4.) 01yw (5.) 01yx (6.) 01yy
(7.) 01yz (8.) 01z0 (9.) 01z1Chapter 13 — Summary
See the summary presentation ( Presentation: VPpkc at http://www.everythingscience.co.za)- Electrical generators convert mechanical energyinto electrical energy.
- Electric motors convertelectrical energy into mechanical energy.
- There are two types ofgenerators - AC and DC.An AC generator is alsocalled an
alternator. - There are two types ofmotors - AC and DC.
- Alternating current (AC) has many advantages over direct current (DC).
- Capacitors and inductors are important components in an AC circuit.
- The reactance of a capacitor or inductor is affected by the frequency of the AC.
Chapter 13 End of Chapter Exercises
- [SC 2003/11] Explainthe difference betweenalternating current (AC)
and direct current (DC). - Explain how an AC generator works. You may use sketches to support
your answer. - What are the advantages of using an AC motor rather than a DC motor.
- Explain how a DC motor works.
- At what frequency isAC generated by Eskomin South Africa?