Question

Расстояние между зарядами 6.4 мкКл и -6.4 мкКл равно 12 см . найти напряженность поля посередине между зарядами.

Answer 1

Е1=F/q1=k*q2/0.5r^2=9*10^9*6.4*106(-6)/(0.5*0.12)^2    F=k*q1*q2/0.5*r^2
E2=F/q2=k*q1/0.5r^2=9*10^9*(-6.4)*106(-6)/(0.5*0.12)^2
E1+E2=0 [В/м] (значения Е1 и Е2 будут равны по модулю, но противоположны, Е1>0, а Е2<0, поскольку расстояние между зарядами одно и то же да и величина зарядов равны по модулю)

Answer 2

Calculation of Electric Field Intensity

To find the electric field intensity at the midpoint between two charges, we can use the formula:

E = k * (q1 - q2) / r^2

Where: - E is the electric field intensity - k is the Coulomb's constant, approximately equal to 9 * 10^9 Nm^2/C^2 - q1 and q2 are the magnitudes of the charges - r is the distance between the charges

In this case, the charges are +6.4 μC and -6.4 μC, and the distance between them is 12 cm (or 0.12 m). Plugging these values into the formula, we get:

E = (9 * 10^9 Nm^2/C^2) * (6.4 * 10^-6 C - (-6.4 * 10^-6 C)) / (0.12 m)^2

Simplifying the equation:

E = (9 * 10^9 Nm^2/C^2) * (12.8 * 10^-6 C) / (0.12 m)^2

E = (9 * 10^9 Nm^2/C^2) * (12.8 * 10^-6 C) / 0.0144 m^2

E = (9 * 10^9 N * 12.8 * 10^-6 C) / 0.0144 m^2

E = (115.2 * 10^3 N * C) / 0.0144 m^2

E = 8 * 10^6 N/C

Therefore, the electric field intensity at the midpoint between the charges is 8 * 10^6 N/C.