358
259
0.20m
600
A
mg
Aにはたらく動 3.0×10 3N、張力、
静電気力Fがつりあう
Tsinbo
OTC05600-3,0x10³ = 0
Tcos 60° 3,0x 10 Co$60°
Jo
60%
Aに 2.0×10°Cの電気量
-3
3.0 x 10 = (9.0x 10%) x 8 (20×107)
10.20)
3,0×10 = (9,0×10') x 8 (2.07/09)
0.04
1
3.0 × 10 = (9.0 × 10 3 x 8 (2x0×103)
3.0x (0=
x
-3
4
9,0×10
2.0
E-
6,0 x 10
280x102
F 3910x/04
3,0x 103
-3
9.0 x1049
q
F 33×107 = q
x/0/7
q = 33×10
Foxxo
2,0
Tsin 60°-F-0
F
sinbo
-3
F = (9,0x/0²) x (20x10") + 1&1 tan 60°
30×103
-3
F
30x10x
-3
→
3.0x 10 x 3 = (9,0 x 10°)
(20x1013) 19
x
(0,2)²
(20×10) 191
0.202
3,0x10x√3 = %10 x10x4
20 x 107
3.0 × 10 9 13 = 9. 0× 10 4 181
181=10C
3