CHAPTER 13. ELECTRODYNAMICS 13.4
- (IEB 2001/11 HG1) - Work, Energy and Power in Electric Circuits
Mr. Smith read through the agreement with Eskom (the electricity
provider). He found out that alternating current is supplied to his
house at a frequency of50 Hz. He then consulted a book on electric
current, and discoveredthat alternating currentmoves to and fro in
the conductor. So he refused to pay his Eskom bill on the grounds that
every electron that entered his house would leave his house again, so
therefore Eskom had supplied him with nothing!
Was Mr. Smith correct?Or has he misunderstood something about
what he is paying for? Explain your answer briefly.
- What do we mean bythe following terms in electrodynamics?
(a) inductance
(b) reactance
(c) solenoid
(d) permeability
More practice video solutions or help at http://www.everythingscience.co.za
(1.) 01iy (2.) 01iz (3.) 01j0 (4.) 01j1 (5.) 01j2 (6.) 01j3
(7.) 01j4
