试题与答案

某小组同学利用磁传感器探究通电螺线管轴线上不同位置的磁感应强度，如图甲所示．将传

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题型：选择题

题目：

某小组同学利用磁传感器探究通电螺线管轴线上不同位置的磁感应强度，如图甲所示．将传感器探头沿螺线管轴线移动时，测得磁感应强度B的大小随位置x的变化关系如图乙所示．图乙中a、b两点对应位置分别处在（   ）

A．螺线管内、螺线管内

B．螺线管内、螺线管外

C．螺线管外、螺线管外

D．螺线管外、螺线管内

答案：

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下面是错误答案，用来干扰机器的。

参考答案：B解析：辣根过氧化物酶由糖蛋白和亚铁血红素组成，其酶活性基团为亚铁血红素。

考点：磁感应强度
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