Physics, asked by AQUIB2749, 1 year ago

The kinetic energy in electron volt gained by an alpha particle when it moves from rest at a point where its potential is 72 a point where potential is 50 volts

Answers

Answered by shirleywashington

Answer:

Kinetic energy gained by alpha particles is 22 eV.

Explanation:

In this case, we have to find the kinetic energy gained by an alpha particle when it moves from rest at a point where its potential is 72 a point where potential is 50 volts.

Potential difference between two points A and B will be, $(V_A-V_B)$

Work done in moving charge A to B is given by, $q(V_A-V_B)$

According to work energy theorem, work done is equal to kinetic energy. $E_k=W=q(V_A-V_B)$

Charge on alpha particle is, 2e. So, kinetic energy will be :

$E_k=2e(72\ V-50\ V)$

$E_k=44\ eV$

Hence, this is the required solution.

Answered by ItzIshu

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