问题
计算题
某灯泡接在220V 的电路中时，消耗的电功率是40W 。求：
(1) 通过灯丝的电流是多大？
(2) 灯丝的电阻是多少？
(3) 工作10min ，消耗电能多少J ？
答案
①0.18A
②1210 Ω
③ 2.4 ×104J
搜题请搜索小程序“爱下问搜题”
某灯泡接在220V 的电路中时，消耗的电功率是40W 。求：
(1) 通过灯丝的电流是多大？
(2) 灯丝的电阻是多少？
(3) 工作10min ，消耗电能多少J ？
①0.18A
②1210 Ω
③ 2.4 ×104J
Passage Three
What did the Norwegian Foreign Ministry do in response to this kidnapping
A．They prepared the ransom demanded by the kidnappers so as to rescue the victims.
B．They demanded that the local Nigerian authority should be held accountable to this incident.
C．They conducted investigation so as to collect more information concerning the kidnapping.
D．They sent negotiators to talk the kidnappers into releasing the hostages.