An electron is accelerated from rest through a Potential difference as shown in

Question

An electron is accelerated from rest through a Potential difference as shown in the figure. Magnitude of electron charge is 1.6 X 10-19 c  and mass of electron is 9.1 X 10-31 kg

A) Find the potential difference between the plates?

B) Find the Kinetic Energy of the electron when it reaches the plate of 100V?

C) What is the velocity of the electron when it reaches the 100V plate?

Please explain step by step and why.  Thank you.

An electron is accelerated from rest through a Potential difference as shown in the figure. Magnitude of electron charge is 1.6 times 10-19 c and mass of electron is 9.1 times 10-31 kg Find the potential difference between the plates? Find the Kinetic Energy of the electron when it reaches the plate of 100V? What is the velocity of the electron when it reaches the 100V plate? Please explain step by step and why. Thank you

Explanation / Answer

a). 100 V b). from work energy theorem; q*V = final K.E. - Initial K.E. => 1.6*10^-19*100 = final K.E. - 0 => final K.E. = 1.6*10^-17 J c). 0.5*9.1*10^-31*v^2 = 1.6*10^-17 => v = 5.93*10^6 m/s

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