Question

如圖所示電阻箱的阻值是

1258

Ω．

Answer 1

分析：解答本題應(yīng)掌握電阻箱的讀數(shù)方法，根據(jù)對(duì)應(yīng)的倍數(shù)的指針?biāo)鶎?duì)的數(shù)字讀數(shù)．

解答：解：×1000的位置對(duì)應(yīng)的數(shù)是1，×100的位置對(duì)應(yīng)的數(shù)是2，×10的位置對(duì)應(yīng)的數(shù)是5，×1的位置對(duì)應(yīng)的數(shù)是8，故是1258Ω．
故答案為：1258．

點(diǎn)評(píng)：本題考查了電阻箱的讀數(shù)方法：把對(duì)應(yīng)的數(shù)位上的數(shù)字讀出，按照數(shù)位寫(xiě)出即可．