Question

In the figure particles with charges q₁ = +4e and q₂ = -14e are fixed in place with a separation of d = 21.5 cm. With V = 0 at infinity, what are the finite (a) positive and (b) negative values of x at which the net electric potential on the x axis is zero?

In the figure particles with charges 91 = +4e and q2 = -14e are fixed in place with a separation of d = 21.5 cm. With V = 0 at infinity, what are the finite (a) positive and (b) negative values of x at which the net electric potential on the x axis is zero? (a) Number Units (b) Number Units

Answer 1

Q al P X X . )) (d d. 9,= +46, 92=-14€, d= 21.5 cm (a) For positive value of 2, at P the net electric potential on the x-axis is zero. . Vith 20+ Anteo [ 22] 0 → Le case 20 * 2.46 = 1467 d-x 2 2 2 2 2 → 7xz 20-21 9x=ad x= 2 d = 2 x 2115=4.777 cm T2 = 4:78 cm (6) For negative value of x , at Q, net electric potential zo. vitV2 = 0 2 Groce [ hoe mes ]-- 40 7x = 20+2x 50' = 2d x= 2 d = 2 x 21.5 = 8.6cm X'= 8.6cm