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1) 2) V 2 = 3) What is the total electrical potential at point A due to both cha

ID: 2129640 • Letter: 1

Question

1)

2)

V2 =

3)

       What is the total electrical potential at point A due to both charges?         

VTotal =

For help with this problem, see Example 20-4 in our text. Two charges, +q1 = q = 4.1 ?C and q2 = +3q are held in place at locations d and -d respectivly as shown above. d=9 cm. A third charge q3 =+4q is held at rest at a point A on the y axis at y=d. What is the electrical potential at point A due to q1? What is the electrical potential at point A due to q2? What is the total electrical potential at point A due to both charges?

Explanation / Answer

1) V1 = k*q1/r1 = 2.9*10^5 volts

2) V2 = k*q2/r2 = 8.7*10^5 volts

3) Vnet = V1+V2 = 11.6*10^5 volts

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