A12.0 v (potential source) is connected across a 6.00mf air filled capacitor. how much energy can be stored this way? what is the energy density when the plates of the capacitor are circular of radius 0.1m and separated by a distance of 10mm?

(I). The store energy is 0.432 J.

(II). The energy density is 687.54 J/m³.

Explanation:

Given that,

Voltage = 12.0 V

Capacitor = 6.00 mf

Radius = 0.1 m

Distance = 10 mm

(I). We need to calculate the energy store

Using formula of store energy

Where, C = capacitor

V = voltage

Put the value into the formula

(II). We need to calculate the energy density

Using formula of energy density

Where, r = radius

d = distance

Put the value into the formula

Hence, (I). The store energy is 0.432 J.

(II). The energy density is 687.54 J/m³.

an obstruction

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )