Klastoets 4 Classtest 4

1
Klastoets 4 / Classtest 4
1. Twee tipes enkel ge-ioniseerde atome het
dieselfde lading q maar wat verskil met n klein
hoeveelheid ?m, word in n massa spektrometer
geplaas (sien probleem voorbeeld 29-3). Lei n
uitdrukking af vir die verskil in massa in terme
van V, q, B, m en die afstand ?x tussen die kolle
op die fotografiese skerm. Two types of singly
ionized atoms having charge q but masses that
differ by a small amount ? m are introduced into
the mass spectrometer (see sample problem 29-3).
Calculate the difference in mass in terms of V,
q, B, m and the distance ? x between the spots on
the photographic plate. (5)
2
Bepaal ?x vir n bundel van enkel ge-ioniseerde
cloor atome met massas 35 en 37 u as V 7.3 kV
en B 0.50 T. Calculate ? x for a beam of singly
ionized chlorine atoms of masses 35 and 37 u if V
7.3 kV and B 0.50 T. (3)
2. n Lang, starre geleier, wat langs die x-as
lê, dra n stroom van 5.0 A in die negatiewe
rigting. n Magneet veld met grootte B 3.0i
8.0x2j is teenwoordig, met x in meter en B in
milli-tesla. Bereken die krag op n 2.0 m
segment van die geleier wat tussen 1.0 m and 3.0
m lê. A long, rigid conductor, lying along the
x-axis, carries a current of 5.0 A in the
negative direction. A magnetic field B is
present, given by B 3.0i 8.0x2j, with x in
meters and B in milliteslas. Calculate the force
on the 2.0 m segment of the conductor that lies
between 1.0 m and 3.0 m. (5)
3
3. In die figuur beweeg n deeltjie langs n
sirkel in n gebied van eenvormige magneetveld
B  4.00 mT. Die deeltjie is n proton of n
elektron (u moet self besluit). Dit ondervind n
magnetiese krag van grootte 3.20 x 10-15 N. Wat
is die deeltjie se spoed? In the figure a
particle moves along a circle in a region of
uniform magnetic field B  4.00 mT. The particle
is either a proton or an electron (you must
decide which). It experiences a magnetic force
of magnitude 3.20 x 10-15 N. What is the
particles speed? (3)
Wat is die radius van die sirkelbaan? What is the
radius of the circle? (2)
4
Wat is die periode van die beweging? What is the
period of the motion? (2)