23.(9分)(1)如图所示(2分)4 U/V(2)增大(2分)(3)2-(2分)(4)8.8(1分)0.6(1分)5.0(1分)【命题意图】本题考查描绘小灯泡伏安特性曲线实验。【解题思路】(1)根据表中数据描点作图,如答图所示(2)分析表中所测数据可知,随电压表V2示数不断增大,小灯泡电阻将增大。(3)毫安表两端电压为U-U1,由欧姆定律得,毫安表内阻为n=xC(4)由电阻的定义式P·可得小灯泡电阻RJ12.201=0.2509=8.892;小灯泡消耗的电功率为PC1≈0.6W;毫安表的内阻n=0.250-9=5.02

ping that you canPatty spots Gary racing toward her,, a nervous look on his face and suitcases in his hands! She is quite第二节Paragraph 1:confused about what has happened. "Your organs! "Gary cries. They,re waiting for you! But we have to get youto Charlotte! Now! "Patty is in shock. Helping Patty into the helicopter, Gary asks the pilot if they can makeit to the airport in time. The pilot smiles, "Your fire chief got the airline to hold the flight! ""You hear thathoney? You're going to live! "Gary says to PattyAt 7:37 the plane takes off. The plane lands in North Carolina at 10: 50. There is plenty of time left forph 2:Patty to make the deadline. After a 10-hour-long operation, doctors tell Gary the transplant couldn,t have gonebetter-the organs are a perfect match. Today, Patty is home recovering, and her doctors say she should live afull and normal life."I live with the knowledge every day that I am alive because so many people care aboutme." Patty savs handily.

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