TABLES
.
467
TABLE lO.—ELECTRON VELOCITIES AT VARIOUS ACCELERATING POTENT‘IALS -
,
Values calculated using the relativity equation
‘
.
_
mo ,2
<__1_
_
1>
:
Æ
-
.
.
.
‘V 1 -— v2/c2
300
'
where V = volts, 0 : velocity in cm. per sec. e/mo = 1.77 ><107 e.m.u./g. ,
.
C = 2998 X 1010 Cm-/S€C.
The deviations from non—relativistic velocities (âmvâ
=
Ve/300 are negligible to 300 volts, not over %% (smaller) to 3000 volts and
not over 1% (smaller) to 7000 volts.
[,
Velocity,
'
Velocity,
_
Volts
6 =
;
X 1010 =
Volts
B =
>< 1010 ='
’
cm-/SCC'
c
cm./sée.
1
.
001984
00595
5000
..1393
.418
5
.
004438
.
0133
6,000
.
1523
_
.457
.
10
.006266
.0188
.
20
008875
0266
7,000
.1644
.
.493
:
30
01087
0326
8,000
.1754
.526
_
40
01255
0376
9,000
.1858.
.557
—
50
.01403
.0421
10,000
.1956
.586
60
.01537
.0461
20,000
.2727
,
“.817
70
01660
.0498
30,000
.3293
.
_
.987
80
.01774
.0532
40,000
.3751
1.12
',
90
.01883
.0564
.
50,000
.4138
_1.24
,
*
100
.01984
.0595
60,000
…4474
‘
1.34 '
‘
200
02806
70,000 '
._‘4771
1.43 -
'
—————————-————-—
80,000
‘
1.51 ,
'
300
.03436
.105
90,000
.5277
1,58;
_
400
.03967
.119
100,000
15486
1.64
_
500
.04434
.133
200,000.
'
.6966
2.09
_
'
600
.04857
.146
300,000
.7777
«_
«2:33
700
05245
.157
400,000,
:8289, . :,
,
‘
800
05607
.
168
'
500,000
259
,
900
05946
.178
«600,000
‘,}»88_8855
a_ ' 2…—ç,5._5«g
,
'
‘
1000
06267
,
.188
. —
272
,
2000
.08849
.265
-—
‘
800,000
9215 276
_
…
__
”___—___
"
900,000,
_
_
,
3000
.1082
.324
“111,0‘00,;000…
-,
,
“ _
_