Question

Tk=9*10^9, p1=5 н Кл, P2=10н Кл, R=10 см, F=? E-?

Answer 1

Ответ:

To find the force (F) and the electric field (E), we can use the formula for the electric force between two point charges:

F = k * |q1 * q2| / r^2

where:

F = electric force

k = Coulomb's constant = 9 * 10^9 N m^2/C^2

q1, q2 = magnitudes of the charges in coulombs

r = separation distance between the charges in meters

We can also calculate the electric field (E) using the formula:

E = F / q

where:

E = electric field

F = electric force

q = magnitude of the charge in coulombs

Given:

k = 9 * 10^9 N m^2/C^2

q1 = 5 * 10^-9 C

q2 = 10 * 10^-9 C

r = 0.1 m (10 cm)

First, let's calculate the electric force (F):

F = (9 * 10^9) * |5 * 10^-9 * 10 * 10^-9| / (0.1)^2

F = (9 * 10^9) * |50 * 10^-18| / 0.01

F = (9 * 10^9) * (50 * 10^-18) / 0.01

F = (9 * 10^9) * (0.5 * 10^-16) / 0.01

F = 4.5 * 10^-7 / 0.01

F ≈ 4.5 * 10^-5 N

Now, let's calculate the electric field (E):

E = F / q2

E = (4.5 * 10^-5) / (10 * 10^-9)

E = 4.5 * 10^-5 / 10 * 10^-9

E = 4.5 * 10^-5 / 10^-8

E = 4.5 * 10^3 N/C

So, the electric force (F) is approximately 4.5 * 10^-5 N and the electric field (E) is approximately 4.5 * 10^3 N/C.