homework_02_electric_fields_zero - KurtRudolph/phys212 GitHub Wiki

Two charges are fixed in place on the [x]-axis as shown.

• Let
  • [q_0 = -2.0 \mu c] be the red charge on the left.
  • [q_1 = 4.0 \mu c] be the blue charge on the right.
  • [r = d = 12.0 cm] be the destance be btween the charges.

Find [h] along the [x]-axis such that the electric field is zero.

• [h = -28.9706]
  • [0 = k \left(\left(\frac{ q_1}{ h^2}\right) - \left(\frac{ q_2}{ \left(r + h\right)^2\right)\right) ]
    • Solve for [-h]