UNIVERSITY OF SOUTHAMPTON
PHYS1022W1
SEMESTER 1 EXAMINATION 2011/12
ELECTRICITY AND MAGNETISM
Duration: 120 MINS
VERY IMPORTANT NOTICE Section A answers MUST be in a separate blue
answer book. If any blue answer booklets contain work for both Section A an
PHYS1022 Mid-semester test
PLEASE PUT YOUR NAME AND TUTOR ON ALL SHEETS
Some things are more important than getting the right answer in this test.
Therefore take time to explain your working clearly.
Most marks are for showing you understand i.e.
diagram
UNIVERSITY OF SOUTHAMPTON
PHYS1022W1
SEMESTER 1 EXAMINATION 2010/11
ELECTRICITY AND MAGNETISM
Duration: 120 MINS
VERY IMPORTANT NOTE
Section A answers MUST BE in a separate blue answer book. If any
blue answer booklets contain work for both Section A and
PHYS1022 Electricity and Magnetism
Mid-Semester Test Solutions 2013
Q1. They can use the the area element r dr dor use circular symmetry and 2 r dr [1]
Q2
[2 marks for figure]
phi
4
2
-3
-2
-1
1
2
3
x
-2
-4
B > A +ve [1] C = D = 0
F > E both ve [1]
Q3 By
PHYS1022 Electricity and Magnetism
Problem Sheet 7 workshop
1. A certain cyclotron with a magnetic field of 1.8 T is designed to accelerate protons to
25 MeV.
(a) What is the cyclotron frequency?
(b) What must the minimum radius of the magnet be to achiev
PHYS1022 Electricity and Magnetism
Problem Sheet 5 for workshop
1.
Calculate
(a) the electric potential established by the nucleus of a hydrogen atom at the average
distance (r = 5.29 1011 m) of the atoms electron (take V = 0 at infinite
distance),
(b) th
PHYS1022 Electricity and Magnetism
Problem Sheet 6 - workshop
1
A 100-pF capacitor and a 400-pF capacitor are charged to 1 kV and 2 kV
respectively. They are then disconnected from the voltage source and are connected
together, positive plate to positive
PHYS1022 Electricity and Magnetism
Problem Sheet 4 for workshop
1.
(a)
(b)
2.
(a)
(b)
3.
Careful measurement of the electric field at the surface of a black box indicates that
the net outward flux through the surface of the box is 6.0 kN.m2/C.
What is the
PHYS1022 Electricity and Magnetism
Problem Sheet 2: for workshops
Note that these questions will not be marked, but will be demonstrated in Workshops.
Assessed problems are to be found at http:/www:masteringphysics.com or from the
PHYS1022 web pages.
1.
A
PHYS1022 Electricity and Magnetism
Problem Sheet 3 - workshop
1. What is the approximate field strength 1 cm above an ordinary sheet of paper carrying
a uniform charge density of = 45 nC/m2? Use Gausss law to derive the expression
required. State the assu
PHYS1022 Electricity and Magnetism
Problem Sheet 3 for tutorials
1.
The figure shows in cross-section,
three cylinders, each of uniform
charge Q. Concentric with each
cylinder is a cylindrical Gaussian
surface, all three with the same
radius. Rank the Gau
PHYS1022 Electricity and Magnetism
Problem Sheet 2: for tutorials
These problem sheets are designed to provide problems for you to discuss in tutorials
with your tutors. They should re-enforce the material we are studying in the lectures.
1. Three equal p
PHYS1022 Electricity and Magnetism
Problem Sheet 1: for workshop
Note that these questions will not be marked, but will be demonstrated in Workshops.
Assessed problems are to be found at http:/www:masteringphysics.com or from the
PHYS1022 web pages.
1. Ca
PHYS1022 Electricity and Magnetism
Problem Sheet 1: tutorials
These problem sheets are designed to provide problems for you to discuss in tutorials
with your tutors. They should re-enforce the material we are studying in the lectures.
Problems for tutoria