ELEC3104 Engineering Electromagnetics
Tutorial 1 Questions
Problem 1.1
Which of these is not a correct form of the wave
(
)
ztEx
β
ω
−
=
cos ?
a)
(
)
tz
ω
β
−
cos
b)
(
)
2/sin
π
ω
β
−
−
tz
c)
−
λ
ππ
z
T
t22
cos
d)
(
)
(
)
ztj
e
βω
−
Re
e)
(
)
utz
−
β
cos
Problem 1.2
The electric field component of a wave in free space is given by
(
)
y
kzt aE += 7
10cos10 V/m. It can be inferred that
a) The wave propagates along ay.
b) The wavelength λ=188.5m.
c) The wave amplitude is 10V/m.
d) The wave number k=0.33rad/m
e) The wave attenuates as it travels
Problem 1.3
Problem 1.4
Which of the following statements is not true of waves in general?
a) It may be a function of time only.
b) It may be sinusoidal or cosinusoidal.
c) It must be a function of time and space
d) For practical reasons, it must be finite in extent
