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Electric fields (A-level only)

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Question 25

In a high-resolution time-of-flight mass spectrometer, ionized isotopes are accelerated from rest across a static electric potential difference.

An ion of species A, having mass μ\muμ and charge +ze+ze+ze, is accelerated through a potential difference Φ\PhiΦ, reaching a final drift velocity of www.

A second ion of species B, with mass 34μ\frac{3}{4}\mu43​μ and charge +2ze+2ze+2ze, is accelerated from rest through a potential difference of 3Φ3\Phi3Φ.

Determine the final drift velocity of species B in terms of www.

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Electric fields (A-level only) Questions

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