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If an electric iron electrons are accelerated through a potential difference of V volts. Taking electronic charge and mass to be respectively e and m, the maximum velocity attained by the electrons is A. 2eV/vm B. v(2eV)/m C. 2m/eV D. v2/8em

If an electric iron electrons are accelerated through a potential difference of V volts. Taking electronic charge and mass to be respectively e and m, the maximum velocity attained by the electrons is
A. 2eV/vm B. v(2eV)/m C. 2m/eV D. v2/8em

Grade:

2 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
one year ago
Dear student

The answer is option b

Regards
Vikas TU
14149 Points
one year ago
 The kinetic energy of an electron accelerated through a potential difference of V volts is given by the equation: ½ mv2 = eV where e is the electron charge (1.6x10-19 C) [You must be given the electron charge and Planck's constant in order to answer this question].

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