Question

Найти напряженность поля заряда 36 нКл в точках удаленных от заряда на 9 и 28 см

Answer 1

Решение чуть ниже на картинке.

Answer 2

Calculating Electric Field Intensity

To find the electric field intensity at points located at distances of 9 cm and 28 cm from a charge of 36 nC, we can use the formula for electric field intensity:

Electric field intensity (E) = k * (|q| / r^2)

Where: - k is the Coulomb's constant, approximately equal to 8.99 x 10^9 Nm^2/C^2 - |q| is the magnitude of the charge in coulombs - r is the distance from the charge in meters

Calculations

1. Electric Field Intensity at 9 cm - Using the formula, the electric field intensity at a distance of 9 cm (0.09 m) from the charge of 36 nC is given by: - E1 = k * (|q| / r^2) - E1 = (8.99 x 10^9) * (36 x 10^-9) / (0.09^2) - E1 ≈ 44.47 N/C 2. Electric Field Intensity at 28 cm - Similarly, the electric field intensity at a distance of 28 cm (0.28 m) from the charge of 36 nC is given by: - E2 = k * (|q| / r^2) - E2 = (8.99 x 10^9) * (36 x 10^-9) / (0.28^2) - E2 ≈ 12.24 N/C

Conclusion

The electric field intensity at a distance of 9 cm from the charge of 36 nC is approximately 44.47 N/C, and at a distance of 28 cm, it is approximately 12.24 N/C.