139. , 1 2 , 1 , 10 ?
140. , 5,010-8 1600 ?
141. +10,410-8 2,410-8 20 . , r2 = 0,1 ?
142. Q = 20 A = 4 . Δφ .
143. Q = 1 . φ , r = 20 .
144. d = 2 φ = 150 . ?
145. , φ = 20 , . φ1 ?
146. , 20 , . ?
147. 100 10 , 10 .
148. 6105 / 7,010-8 10 60 . .
149. 20 700 200 ? -100 400 ?
150. R = 6,4·106, Q, , = 130 /. h = 600 .
151. , φ = 792 , σ = 333 /2. r .
152. 1 40 . ?
153. φ = 16 , q = 2. , q1 = 5 q2 = 5 , a = 10 . E , 8 6 .
154. BCD = 5 = 10 q1 = 4 q2 = 2 . A, q3 = 3 , D .
155. +Q Q R . E φ ?
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156. = 600 /. U , , α = 60 . Δr 2 .
157. 120 /. U , Δ r = 1 .
158. . φ , r =12 , 24 . .
159. D = 2 φ = 100 000 . Q , ?
160. Q1 = 1 Q2 = 1 d = 10 . E φ , r = 10 , Q1 Q2.
161. , 2,010-8 8,010-4 ?
162. 24 8 . , 48,010-7 ?
163. 1,010-8 6,010-6 . , ?
164. , 1,0 ?
165. 1 8000 . , .
166. , 0 8000 /?
167. 5,5510-8 1,0 . , 10 ?
168. , 1,710-8 10 .
169. 4,010-8 1,010-8 30 . , , , 10 20 .
170. 4,010-8 1,010-8 80 . , Q1 = 100 Q2 = 10 , d = 10 .
171. Q1 = 10 , Q2 =20 Q3 = 30 , a =10 .
172. Q = 10 , a = 10 ?
173. , a = 10 . Q = 10 , . .
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174. , , 2 . 10 . ?
175. + 2Q Q, d = 12 . , ( ).
176. Q1 =| Q2 |=1 Q = 20 , 1 . Δ Q 1 2 (. 33). Q2 a = 0,2 .
177. R = 10 τ = 10 /. φ , , a = 5 .
178. 10 /. , 5 10 .
179. τ = 10 /. φ, , , .
180. τ =1 /. , r =10 ? .
181. l = 10 Q = 1 . φ , a = 20 .
182. a. τ =1,33 /. φ .
183. τ = 0,01 /. Δφ , r1 = 2 r2 = 4 .
184. d = 0,5 . σ1 =0,2 /2 σ2 = 0,3 /2. U .
185. 10 /2. , 5 10 .
186. 0,5 . 0,3 /2, +0,2 /2. .
187. +q q 1,0 , 10 . 1,010-6 , ?
188. 0,70 , 1,5 . 0,40 , 0,80 /3. .
189. d = 1 . σ1 = 0,2 /2 σ2 = 0,5 /2. U .
190. σ = 4 /2. , .
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191. +q q 2 300 . , 6 ?
192. +q q 3,0 , 30 . ( ). .
193. (ε = 3) R = 10 ρ = 50 /3. E = ρr/(3ε0ε), r , . Δφ , .
194. 2104 /. 0,6 ?
195. U 90 , r = 1 . a ? v ? t ? .
196. m =1 , , U = 3 MB. ? v ?
197. , U = 600 , V = 5,4 /. ( ).
198. α- 140 . α-. ?
199. + 100 , + 200 . .
200. 1 / -25 2 . , .
201. 60 / 5 . , 20 , 60 . , . .
202. , V 100 /, (E = 300 /) , . l , ?
203. v = 10 /, . ( ), d 16 , U = 30 l 6 ?
204. 200 300 . , . .
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205. 1,010-8 , 5,0 . 5,0 . , ?
206. , 10 30 /?
207. - (mα = 6,710-27 , q = 3,21019 ) V = 20 / , . ?
208. α-, . α- 4 , 2 .
209. , 60 /. , 10 . , : ) ; ) , ; ) , 45 .
210. 900 . , ?