Question

Заряды 9 и 16 нКл расположены на расстоянии 7 мм друг от друга. Какая сила будет действовать на заряд 1 нКл, помещенный в точку, удаленную на 3 мм от меньшего и на 4 мм от большего заряда?

Answer 1

F=kqq0/R^2 = 10^-8 * 16 *10^-9 * k/0.001*0.001 = 16*10^-17 * 9* 10^9/10^-7 =144* 10 ^-1=14,4

Answer 2

Calculation of the Electric Force

To calculate the electric force acting on a charge, we can use Coulomb's Law. Coulomb's Law states that the force between two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.

The formula for Coulomb's Law is:

F = k * (q1 * q2) / r^2

Where: - F is the electric force between the charges, - k is the electrostatic constant (approximately 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, we have two charges: 9 nC and 16 nC, located at a distance of 7 mm (0.007 m) from each other. We want to calculate the force acting on a charge of 1 nC, which is placed at a distance of 3 mm (0.003 m) from the smaller charge and 4 mm (0.004 m) from the larger charge.

Let's calculate the force using the given values:

F = (9 * 10^-9 Nm^2/C^2) * ((1 nC) * (9 nC)) / (0.003 m)^2

F = (9 * 10^-9 Nm^2/C^2) * (9 * 10^-9 C^2) / (0.003 m)^2

F = (9 * 9 * 10^-18 Nm^2) / (0.003^2 m^2)

F = (81 * 10^-18 Nm^2) / (0.000009 m^2)

F = 81 * 10^-18 / 0.000000000009 N

F = 9 * 10^-9 N

Therefore, the electric force acting on the 1 nC charge is 9 * 10^-9 N.