Question

How much kinetic energy will be gained by an alpha partical in going from a point at 70v to another point at 50v

Answer 1

Answer: Kinetic energy gained by alpha particles is 22 eV

Explanation:

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,  

Work done in moving charge A to B is given by,  

According to work energy theorem, work done is equal to kinetic energy.  

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

Hence, this is the required solution.