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Estimate the speed with which electrons ...

Estimate the speed with which electrons emitted from a heated emitter of an evacuated tube impinge on the collectro maintained at a potential difference of 500 V with respect to the emitter. Ignore the small initial speeds of the electrons. The specific charge of the electrons i.e. its e/m is given to be `1.76 xx 10^11 C kg^-1`.

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