In Thomson's method of determining e/m of ele | vedclass

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(B) In Thomson's experiment to determine the specific charge $(e/m)$ of an electron,a fine beam of electrons is passed through a region where both ele

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Electric and magnetic fields are perpendicular to each other and perpendicular to the electron beam.

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(B) In Thomson's experiment to determine the specific charge $(e/m)$ of an electron,a fine beam of electrons is passed through a region where both electric and magnetic fields are applied.These fields are arranged such that they are mutually perpendicular to each other and also perpendicular to the direction of the electron beam.By adjusting the fields,the electron beam is made to pass undeflected,allowing the determination of the velocity and the $e/m$ ratio.

In Thomson's method of determining $e/m$ of electrons,how are the electric and magnetic fields arranged relative to the electron beam?

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