2021-2022学年湖南省湘潭市中考押题物理测试模拟试题（含解析）

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2021-2022
ᓭḕὃ⚪ᱥᳮ⚪⚪
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25(3)[3][4][5]ᙠÆᵯHḄᵯ¨(ÇÆᵯ¨¢2uᵯH⊤⌱ᵨ&ÈNᑖOÊ«0.1V,ᦪ«1.8V,&ÇḄÆᵯH2.5V,yÌᜧḄᵯH᪷ὶᵯᵯHḄÍÎyÏ&"#jᘤḄᵯHᵫᑖH»ᳮGyÏ&"#jᘤᐭᵯuḄᵯᜧ&ᦑ"ᱏᔣ8¯#6ᑮᵯH⊤ᦪ«ḄÆᵯH2.5V஺(4)[6]᪷¢ÑᡠḄ&ᵯ¨ÒᵯHjᓄḄᐵÓ¢ºᙠÆᵯH2.5VdḄᵯ¨«0.3A,ÔdḄᵯÕ=&=Ø8.30/Æ0-3A(5)জ[7]ܤᔠSoஹSi&$ßᵯ&ὶᵯH⊤&ḄᵯH¯#"ᱏàᵯH⊤ᦪ«IV,ᵫ¢3GḄᵯ¨«0.2A,ᵫὶᵯḄᵯ¨ᱯãGÔd¬ä&Ḅᵯ¨0.2Aঝæçᢝ"ᱏéêSjܤᔠSoஹS2,&$ßᵯ&ὶᵯH⊤&ßᵯḄëᵯHᵯH⊤ᦪ«2.6V,ᵫὶᵯḄᵯHᱯãGÔdR,ḄḄᵯH«Ux=8=U12.6V-IV1.6Vঞ[9]¼ᵯḄIᐵÓïᨵᦋjᔜᵯḄᜧ&Sj¬äßᵯñḄᵯ¨òSjᵫóôÎGõḄÊ30.1250512522088%ூ௃ᵫ¢2G÷s«10mdúḄû«ëû«ᓛý1250J஺[2]ᵫ¢G"ÿ
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26[4]567
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27Fn'-=G'=FL^X107N4.2X107N8X106N32.Nᜧ120305501.65xl05160࠷ூbc௃(1)[1]Sᔠ¡ᵯ£¤ᵯ¥¦Ḅ§£ᐭஹu§£ª᪷¬®¯ᑣ°ᵯ¥¦§±N᩽஺ফᵫ´2°µឤ·¸C·ᓣ¡¹ºᵯ»¼Ḅ»½¾¿ÀᑴᵯÂḄÃᵯ»¾¿,ᵫÄ°ÀᑴᵯÂḄᵯ£¾ᜧᑣÅᙌCḄᵯ£Ç¾ᜧ஺(2)[3]ᵫ´2°ឤ·¸C·Èᢝ40஺(2,¹ºᵯ»ÊḄ»½=120஺஺[4]ᵫ⚪g°µÌᵯᘤÅᙌCḄᵯ£Îᑮ/=50mA=0.05AÌᵯᘤḄ⊖¦EÐᔾux¡ឤ·¸C·ᨬx¡ÀᑴᵯÂḄÃᵯ»5ÓὶᵯÂCÃᵯ»ÕÖᔜᑖᵯ»Ùᡠ<x¡{Ḅ»½R=R,£>-7?3-7?/=160Q-120Q-10Q=30Q2(3)[5]&àá¡ḄJ᳛P=â=(220V)2=550WR088஺å="যᵫ5minéὑḄᵯ%=Pr=550Wx5x60s=1.65x105J(4)[7]µឤ·¸ì¯Ḅ·ᨬ¡¹ºᵯ»íḄ»½ᨬ¿îx¡ÀᑴᵯÂḄÃᵯ»160c6¾ᑣ¹ºᵯ»Ḅᨬ¿»½R
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