Question

Напряженность электрического поля в плоском конденсаторе 30 кВ/м. Разность потенциалов между обкладками 300 В. Каково расстояние (в мм) между обкладками конденсатора?

Answer 1

E=U/d
d=U/E
d=300/30*10^3=0,01 м

Answer 2

Calculation of Distance between the Plates of a Capacitor

To calculate the distance between the plates of a capacitor, we can use the formula:

E = V/d

Where: - E is the electric field intensity (or electric field strength) in the capacitor, measured in volts per meter (V/m). - V is the potential difference (or voltage) between the plates of the capacitor, measured in volts (V). - d is the distance between the plates of the capacitor, which we need to find, measured in meters (m).

Given that the electric field intensity is 30 kV/m and the potential difference is 300 V, we can substitute these values into the formula to find the distance between the plates.

30 kV/m = 300 V / d

To solve for d, we can rearrange the equation:

d = 300 V / (30 kV/m)

Now, let's convert the units to ensure consistency:

1 kV = 1000 V 1 m = 1000 mm

d = (300 V / (30 kV/m)) * (1000 mm / 1 m)

Simplifying the equation:

d = (300 V / 30,000 V/m) * 1000 mm

d = 10 mm

Therefore, the distance between the plates of the capacitor is 10 mm.