试题与答案

如图所示,四个相同的表头分别改装成两个安培表和两个伏特表.安培表A1的量程大于A

题型:选择题

题目:

如图所示,四个相同的表头分别改装成两个安培表和两个伏特表.安培表A1的量程大于A2的量程,伏特表V1的量程大于V2的量程,把它们按图接入电路,则(  )

①安培表A1的读数大于安培表A2的读数;②安培表A1的偏转角小于安培表A2的偏转角;

③伏特表V1的读数小于伏特表V2的读数;④伏特表V1的偏转角等于伏特表V2的偏转角.

A.①②

B.②③

C.③④

D.④①

答案:

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周期

IA 0
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3 Li

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4 Be

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5 B

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7 N

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11 Na

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12 Mg

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13 Al

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14 Si

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15 P

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16 S

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17 Cl

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18 Ar

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