What is the electric potential at points A , B , and C in the figure? I\'m getti

Question

What is the electric potential at points A, B, and C in the figure?

I'm getting A and B 1800  volts, C 9000 volts.  Mastering physics says no?

I don't understand.

What is the potential energy of an electron at point A in the figure?

What is the potential energy of an electron at point B in the figure?

What is the potential energy of an electron at point C in the figure?

What is the potential difference ?VAB?

What is the potential difference ?VBC?

What is the electric potential at points A, B, and C in the figure? I'm getting A and B 1800 volts, C 9000 volts. Mastering physics says no? What is the potential energy of an electron at point A in the figure? What is the potential energy of an electron at point B in the figure? What is the potential energy of an electron at point C in the figure? What is the potential difference ?VAB? What is the potential difference ?VBC?

Explanation / Answer

Electric potential = k*q/r

So, electric potential at point A =electric potential at point B = (9*10^9 * 2*10^-9) / 0.01 = 1800

C =900 Volt....so answers are:

Potential energy of an electron at point A = 1800*e.....where e=1.6*10^-19

Potential energy of an electron at point B = 1800e

Potential energy of an electron at point C = 900e

Vab = 0 volt

Vbc =900 volt

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