Final speed of an accelerated electron

  • Thread starter gidra
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  • #1
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Whit is the final speed of an electron accelerated through a potential difference of 200 V if has an initial speed of 2.0 x 10^6 m/s. (Charge of electron = 1.6 x 10^-19 C and mas of electron = 9.11 x 10^-31 kg)
 

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  • #2
Dick
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I don't know. What's the definition of 'potential difference', i.e. V. How much energy does it gain? How much energy did it start out with? Can you convert that back into speed?
 

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