Answer to Question #311460 in Electricity and Magnetism for Anne

Question

5. The electric field caused by a certain point charge has a magnitude of 5.0 × 10^3 𝑁 𝐶 at a distance 0.10m from the charge. What is the magnitude of the charge?

6. Two particles having charges 𝑞1 = 1.00 × 10^−19𝐶 and 𝑞2 = 2.00 × 10^−9𝐶 are separated by a distance 2.00m. At what point is the total electric field due to the two charges equal to zero?

7. Create an illustration of the electric field lines of 𝑞1 = 1𝐶 between 𝑞2 and 𝑞3 both having a charge od -2C.

8. A uniform electric field 𝐸 = 8000 𝑁 𝐶 passing through a flat surface with an area of 𝐴 = 10𝑚^2 . Determine the flux if: a.) the electric field direction and the line perpendicular to the surface is pointing in the same direction. b.) the electric field direction and the line perpendicular to the surface is perpendicular. c.) the angle is 45�

Answer 1

5.

$q=\frac{Er^2}k=5.6~\mu C.$

6.

$x=\frac r{1+\sqrt{\frac{q_2}{q_1}}}=0.83~m.$

8a.

0.

8b.

$\Phi=EA=80~kVm.$

8c.

$\Phi=EA\cos\alpha=57~kVm.$