WSKT 212 PAC

1.3.2 Gestel AC, die buitenste rand van
die ryvlak, is 4,762 m hoog.
Bereken AB, die breedte van die
ryvlak.
Vraag 2/ Question 2
2.1 Die grootte van die emk E in Volt wat
in ‘n generator opgewek word deur ‘n
draadlus wat teen ‘n hoeksnelheid ω
(in radiale per sekonde) in ‘n
magneetveld B roteer, word gegee
deur die formule E = NABω⋅ sinθ
waar
N die aantal windings in die lus, A die
oppervlakte van die lus en θ die hoek
in grade wat die normaalvektor met die
magneetveld maak:
Bereken die grootte van θ in
E = NABω⋅ sinθ
indien N = 3 ,
2
A = 0,02 m , B = 0,5 Tesla ,
ω = 157,08 rad/s en E = 4 V .
Gee twee oplossings.
199
Suppose AC, the outer edge of the
driving surface, is 4,762 m high.
Calculate AB, the width of the
driving surface.
The magnitude of the induced emf
E in Volt which is generated by a
generator when a loop of wire rotates
at an angular velocity ω (in radians
per second) inside a magnetic field
B , is given by the formula
E = NABω⋅ sinθ
where N is the
number of windings in the loop, A is
the area of the loop and θ is the
angle in degrees between the normal
vector and the magnetic field:
Calculate the magnitude of θ in
E = NABω⋅ sinθ
if N = 3 ,
2
A = 0,02 m ,
B = 0,5 Tesla , ω = 157,08 rad/s and
E = 4 V .
Give two solutions.