1. A parallel-plate capacitor ima početni capacity C, the permittivity of free space is εo, plate area is A, the distance between plates is d. If the plate area increased by 4 times, the distance between plates becomes 2d and the permittivity of free space je 5εo, what is the final capacity of the parallel-plate capacitor.
Poznato:
The capacity of capacitor = C
The permittivity of free space = εo
Plate area = A
The udaljenost between plates = d
Htjela: Capacity of the capacitor (C)
rješenje:
2. The capacitor that has the largest capacity based on the graphic below is...
rješenje:
The formula of the parallel-plate capacitor :
The capacity of capacitors :
The capacitor that has the largest capacity is capacitor C3.
3.
Consider the following factors!
(1) Dielectric constant
(2) da potencijalna razlika between the plates
(3) Plate tseljačina
(4) The surface area of the plate
(5) The distance between the plates
(6) Amount of električno punjenje
Factors affecting the capacities of parallel plate capacitors are …
rješenje:
(1), (4) and (5)
4. The capacity comparison of the capacitor 1 and 2 is…
Poznato:
Kondenzator 1:
Površina = 2A
The distance between plates =d1
Kondenzator 2:
Površina = A
The distance between plates = 2 d1
Htjela: The capacity comparison of the capacitor 1 and 2
rješenje:
5.
Determine comparison of the capacity of Parallel-plate capacitor I and II.
rješenje:
Comparison of the capacity of Parallel-plate capacitor I and II :
6. Two parallel-plate capacitors shown in the figure below.
If A1 = ½ A2 i d2 = 3 d1 tada. odrediti the ratio of capacities of the parallel-plate capacitor between the image 2 and the image 1.
Poznato:
Parallel-plate capacitor I :
A1 = 1
d1 = 1
Parallel-plate capacitor II :
A2 = 2
d2 = 3
Htjela: the ratio of capacities of the parallel-plate capacitor between the image 2 and the image 1
rješenje:
Parallel-plate capacitor I :
Parallel-plate capacitor II :
The ratio of capacities of the parallel-plate capacitor II and I :
