a
striking
manner
the
whole
aspect
of
phenomena
Steady
Current.
10.
Logarithmic
the
point
from
which
they
took
their
rise.
Eleven
years
previously
Prof.
H.
C.
CErsted
had
made
Copenhagen
famous
as
the
birth-place
of
the
discovery
that
an
electric
current
passing
through
a
metallic
wire
magnetises
it
circularly
and
creates
round
possible
that
some
conception
battery,
again
same
direction
through
the
other,
but
this
induced
that
radial
to
be
found
in
a
wire
or
circuit
at
rest
in
a
magnetic
field.
The
circuit
was
in
field,
but
withdrawing
varying
with
the
distance.
Faraday
may
be
said
of
the
magnetic
force
at
that
point
in
a
line
of
magnetic
force.
The
whole
possess
a
certain
magnetic
the
direction
of
the
magnetisation
of
that
in
the
air
space
outside
a
magnet
or
a
mass
of
direction.
In
the
inside
of
a
straight
uniformly
magnetised
Every
magnetic
joint
action
of
and
having
single
circuit.
iron.
The
intensity
of
from
a
complete
iron
circuit,
Such
experiments
have
able to
*
deflect in
sends
a
momentary
powerful
current
through
the
lamp,
induct-
sides
A
C,
B
D,
 cut
across
lines
of
magnetic
induction,
induction,
and
the
quantity
H
A
cos
9
is
the
numerical
the
current
and
that
of
same as
electro-magnetic
momentum
of
such
circuit
and
the
con-
stant
coefficient
of
embraced
by
a
small
coil
of
wire
in
circuit
with
in
the
helix,
this
embracing
coil
has
a
certain
number
of
lines
of
induction
ballistic
galvanometer
is
determined.
By
increasing
the
mag-
netising
current
suddenly
by
steps
or
jumps,
and
observing
in
each
case
the
Opera-
tion
of
Feeble
Magnetic
Forces,
Phil.
square
on
consequent
rise
of
temperature,
if
all
the
under
the
Opera-
tion
and
strength
itself
angle
multi-
X
sine of
conductor,
it
can
always
be
resolved
into
electromotive
force
acting
to
produce
a
current
in
the
circuit
is
coupled
with
a
simple
harmonic
motion,
called
of
non-magnetic
material
and
not
having
any
iron
around
it
or
near
it.
Let
there
be
any
conductor,
resistance
of
a
conductor
is
a
quality
passage
of
a
current
through
necessary
to
maintain
the
motion
against
friction,
the
angular
velocity,
and
may
be
called
the
pulsation.
Then
through
a
certain
cycle
of
magnitudes
ranging
value
of
the
current
of
equal
wave
through
0.
It
is
required
to
find
difference
of
phase.
E.M.F.,
but
in
the
second
quarter
of
against
the
E.M.F.,
sistance,
and
let
the
the maximum
always
branch
circuits.
Now
OY
is
the actual-
values
or
the
average
values
during
the
period.
If
spires
a
coating
of
silk
was
interposed.
Helix
No.
4,
shown
at
a,
Fig.
2,
was
formed
of
five
hundred
and
forty-six
yards
of
wire
T
\th
of
an
inch
in
diameter,
the
several
spires
of
which
were
insulated
by
a
coating
of
cecaeat.
above
kind.
a
small
battery,
the
deflagration
was
less
than
with
coil
No.
1,
lengths,
or
sixty-four
feet,
the
brilliancy
of
the
spark
began
to
decline,
same
quantity
of
metal
(as
secondary
circuit)
.in
intense
to
be
received
with
impunity
except
through
the
fingers
of
one
hand.
The
secondary
battery
of
intensity.*
This
experiment
importance
that
by
the
continuous
and
also
been
working
on
similar
lines.
In
Wiley
Smith's
specification
key,
with
suitable
con-
nections,
are
mounted
on
joined
give
size
below
a
certain
limit
visible
in
opposite
directions,
and
succeeding
each
other
immediately.
This
Poggendorff*
holds
to
be
shown
by
the
action
of
such
tertiary
or
higher
order
currents
on
a
galvanometer.
If
accurately
at
makes
c
be
a
time
line,
dischai-ge
is
represented
by
a
b,
and
that
of
the
second
by
of
the
needle,
the
galvanometer
needle
experiences
a
settle
by
experiment
with
a
magnetising
equal
to
the
quotient
formation,
without
regard
to
when the
coil
P.
When
one
high
rate
1
of
speed,
battery,
B,
and
coil,
C,
and
of
the
maximum
swing
primary
and
secondary
is the
magnetic
screening
p
2
substance
and
connected
in
series
(Fig.
23).
Over
each
primary
bobbin
be
reduced
the
action
of
the
under
the
head
of
magnetic
screening,
this
be
;
and
total
quantity
not be.
If S
battery.
rate
of
variation
will
be
less
a
M
2
are
in
cer-
tain
positions
that
the
inductive
electromotive
force
set
up
in
the
telephone
circuit
by
joined
to
the
conductor
under
investigation
P,
every degree
to be
steady
ones.
On
inserting
a
solid
copper
rod
into
the
coil
and
measuring
again
the
steady
the current
no
more,
or
not
much
more,
opponent
with
which
the
impressed
electromotive
force
has,
wire was '05
resistance
of a
other.
surface,
or
makes
them
more
get-at-able
from
the
dielectric.
The
better
the
conductor
the
magnetic
induction,
is
zero.
Let
e
the ratio
of a
magnetic
induction
is
changing
with
respect
to
magnetic
force
at
that
instant.
This
is
at
once
given
from
the
magnetisation
-j-
R
field-magnets
lamps
in
parallel.
The
problem
then
generally
sinoidal
impressed
electromotive
force
and
e
its
instantaneous
value
at
any
moment.
We
will
furthermore
periodic
change
of
magnetic
lag
follows
phase,
and
this
is
proportional
Hence,
on
this
theory
the
fact
that
a
delay
or
lag
in
the
magnetisation
of
the
case,
for
we
proceeds
self-induction
of
the
copper
quantities
the
and the
of the two
we
got
the
following
There
range
of
secondary
resistance
say,
if
at
any
point
in
a
field
we
propagation
of
electro-magnetic
effects
through
space,
stress
resisting
that
change.
The
term
displacement
here
used
must,
however,
points along
expresses
its
place.
any
rotating
the
particles
down between
cells
lying
on
a.
concentric
line,
and
cause
them
consequence
angular
velocity
of
the
vortex
motion
at
that
point,
and
the
magnetic
induction
is
the
angular
momentum.
Magnetic
attraction
and
repulsion
is
due
to
the
tension
set
places
where
there
is
magnetic
polarity
of
the
current,
and
we
shall
sup-
pose,
as
usual,
that
the
magnetic
field
is
indicated
of
mind
expand
out
to
reach
posi-
tions
in
the
material
.system
and
forward,
each
more
feeble
than
the
preceding,
until
equili-
brium
is
attained.
All
differential
coefficients,
and
substitute
to these
follows
a
Leyden
jar,
Eliminating
i'
we
have
(3)
may
be
written
secondary
circuit,
and
their
immediate
frequency
of
of
the
mean
current
through
the
inductive
circuit
may,
under
some
circumstances,
be
greater
when
the
condenser
is
joined
up
to
be
pushed
away,
an immense
of
this
rather
than
pass
round
and
damage
a
zig-zag
or
non-inductive
resistance.
These
to -6
steady
currents
or
discharge.
Two
tin
plates
are
placed
horizontally
and
insulated,
and
these
are
supposed
to
represent
the
height
and
shorter-stemmed
knob
no
longer
protects
the
larger
one,
and
the
no
longer
struck
higher
than
them,
and
even
if
it
be
made
jar
coatings
length,
and
the
wave
length
of
the
and
fro
greatly
enfeebled
;
the
same
phase,
and
there
will
be
no
effect,
as
case,
and
he
concludes
that,
owing
fully
his
conclusion
that
the
sparks
circuit,
which
was
supported
on
an
insulating
stand,
was
placed
parallel
to
a
portion
be
extremely
feeble
length.
That
the
action
of
C
was
not
by
its
producing
no
effect
when
action
are of
secondary
circuit
of
the
C
and
C'
were
three
metres
apart,
copper,
2
millimetres
in
diameter,
conductor,
its
length
could
were
g
h,
as
expected.
Further,
when
the
sphere
was
made
to
touch
the
best
results,
should
other
physicists
desire
to
repeat
the
experiments,
Dr.
hoi
tz's
more
sixth
of
induction
would
be
in
equilibrium.
of
the
that
the
rapidly
from
the
line
A
A'
than
the
electrostatic
lines,
though
neigh-
bourhood
of
the
primary
acts
an
open
with
distance.
The
conductors
time
were
transformed
into
mere
points
of
minimum
sparking,
a
complete
disappearance
being
no
longer
obtainable.
3.
When
the
plates
A
A'
rested
on
the
asphalte
one,
and
smaller
blocks
tions on
more
powerful,
as
is
shown
by
node,
no
effect
is
produced
upon
the
of
the
primary
oscillation,
but
*he
waves
in
will
here,
therefore,
impel
positive
electricity
towards
the
origin.
A
current
will
there-
fore
flow
round
B
towards
position
of
electro-dynamic
E.M.F.
These
sufficient to
the true
of
the
experiments
is
that
in
passing
any
one
wall,
and
approached
each
other
again,
until,
when
the
centre
was
from
position
of
C
in
mind,
however,
that
the
frequency
of
light
oscillations
falls
between
flow
any
ideas
which
very
small
body
charged
with
a
unit
of
positive
electricity,
energy
disappears
at
one
point
and
reappears
at
an
up
and
their
energy
dissipated
a
conductor
energy,
even
if
it
portions
a
limited
portion
of
the
conductor.
Energy
again
in
a
radiant
form,
partly
in
the
Energy
itself
impractic-
able,
and
was,
in
Design
of
Transformers
Practical
Predetermina-
tion
great
go
to
subject
Electrolysis
of
Gold,
Silver,
Copper,
Nickel,
and
other
Metals
and
Alloys.
By
Alexander
Watt,
F.K
S.S.A.
With
numerous
illustrations.
Third
Edition.
Crown
8vo,
cloth,
9s.
ELECTRO-PLATER'S
HANDBOOK.
By
G.
E.
Bonney.
Second
Edition.
3s.
ELECTRO-CHEMISTRY
seepage
11.
ELECTRO-
DEPOSITION
CHEMISTRY
FOR
LABORATORY
USE.
By
John
Muter,
THE STEAM
H.
Slade.
WATER