An electron is moving along positive x-axis. To get it moving on an anticlockwise circular path in x-y plane, a magnetic filed is applied?

Along positive y-axis

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Along positive z-axis

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Along negative y-axis

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Along negative z-axis

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Solution

The correct option is B Along positive z-axis
The given situation can be drawn as follows
According to figure, for deflecting electron in x-y plane, force must be acting on it along y-axis.
Hence according to Right hand thumb rule, magnetic field directed along positive y- axis.

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An electron is moving along positive x-axis. To get it moving on an anticlockwise circular path in x-y plane, a magnetic filed is applied?

The correct option is B Along positive z-axisThe given situation can be drawn as follows According to figure, for deflecting electron in x-y plane, force must be acting on it along y-axis. Hence according to Right hand thumb rule, magnetic field directed along positive y- axis.

The correct option is B Along positive z-axis
The given situation can be drawn as follows
According to figure, for deflecting electron in x-y plane, force must be acting on it along y-axis.
Hence according to Right hand thumb rule, magnetic field directed along positive y- axis.