UNIVERSITY COLLEGE LONDON
EXAMINATION FOR INTERNAL STUDENTS
MODULE CODE : SPCE0005
ASSESSMENT : SPCE0005
PATTERN
MODULE NAME : Space plasma and magnetospheric physics
LEVEL : Postgraduate
DATE : 18 May 2021
TIME : 14:30
TIME ALLOWED : 3 hrs
This paper is suitable for candidates who attended classes for this mod_xfffe_ule in the following academic year(s):
Year
2020/21
EXAMINATION PAPER CANNOT BE REMOVED FROM THE EXAM HALL. PLACE EXAM
PAPER AND ALL COMPLETED SCRIPTS INSIDE THE EXAMINATION ENVELOPE
Hall Instructions .
Standard Calculators Y
Non-Standard Calculators N
SPCE0005/2020-21 1/5 CONTINUED
Answer ALL questions.
The numbers in square brackets show the provisional allocation of
maximum marks per question or part of question.
Equations of magnetohydrodynamics (MHD)
ρ: mass density, u: bulk velocity, P: thermal pressure, B: magnetic field
Continuity equation:
ρ
t + · (ρu) = 0
Momentum equation:
ρ
u
t + ρ(u · )u = P +
(B · )B
μ0
_x0012_ B2
2μ0
