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  • An electron is accelerated through a potential difference V. Write the expression for its final speed if it was initially at rest.    

An electron is accelerated through a potential difference V. Write the expression for its final speed if it was initially at rest.

 

 

Answers (1)

The change in kinetic energy = work done

                     \frac{1}{2}mV^{2}-0=qV

                                        V=\sqrt{\frac{2qV}{m}}

 

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