Electromagnetic radiation is produced by charged particles that are movingA.at the speed of lightB.with zero accelerationC.with a changing velocityD.parallel to a fixed magnetic field

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Electromagnetic radiation is produced by charged particles that are movingA.at the speed of lightB.with zero accelerationC.with a changing velocityD.parallel to a fixed magnetic field
Electromagnetic radiation is produced by charged particles that are moving
A.at the speed of light
B.with zero acceleration
C.with a changing velocity
D.parallel to a fixed magnetic field

Electromagnetic radiation is produced by charged particles that are movingA.at the speed of lightB.with zero accelerationC.with a changing velocityD.parallel to a fixed magnetic field
变化的电磁场才能产生电磁波.

题目翻译如下:电磁波是由带电物体怎么运动产生的?答案C:以变化的速度运动的。因为我们都知道变化的电场产生磁,而后变化的磁场又产生电,所以最终产生电磁波。A项以光速运动,B项以零加速度即匀速运动,D项与磁场方向平行,均属错误或无关选项...

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题目翻译如下:电磁波是由带电物体怎么运动产生的?答案C:以变化的速度运动的。因为我们都知道变化的电场产生磁,而后变化的磁场又产生电,所以最终产生电磁波。A项以光速运动,B项以零加速度即匀速运动,D项与磁场方向平行,均属错误或无关选项

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电磁波是由带电物体怎么运动产生的?
A以光速运动,
B以零加速度即匀速运动
C以变化的速度运动
D与磁场方向平行
首先要明白电磁波是磁场激发电场,电场有激发磁场产生的,而,稳定的磁场不激发电场,均匀变化的磁场激发稳定的电场,不均匀变化的磁场激发不均匀变化的电场,对电场来说同样成立。所以带电物体必须一变化的速度运动产生变化的磁场从而激发变化的电场,如...

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电磁波是由带电物体怎么运动产生的?
A以光速运动,
B以零加速度即匀速运动
C以变化的速度运动
D与磁场方向平行
首先要明白电磁波是磁场激发电场,电场有激发磁场产生的,而,稳定的磁场不激发电场,均匀变化的磁场激发稳定的电场,不均匀变化的磁场激发不均匀变化的电场,对电场来说同样成立。所以带电物体必须一变化的速度运动产生变化的磁场从而激发变化的电场,如此循环下去的。
故,该物体必须以变加速度来运动才行。
这种问题一定要搞清楚电磁场相互激发的原理才行额,我之前遇到这种问题的时候也挺迷惑的,呵呵。

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A.带电粒子不是以光速运动的。故错误
B.带电粒子不是做匀速运动,而是变速运动。故错误
C.是做变速运动,因为方便改变,故正确。
D.不是平行于固定磁场,而是垂直于固定磁场。故错误。

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