CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The insertion of a dielectric between the plates of a parallel-plate capacitor always

A
increases its capacitance
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
decreases its capacitance
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
remains same its capacitance
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
none of the above
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A increases its capacitance
The capacitance of a parallel plate capacitor completely filled with a given material of dielectric constant K is given by:
C=Kε0Ad .....................eq1
And the capacitance of the same capacitor without the given material is given by:
C=ε0Ad .....................eq2
Dividing eq1 by eq2:
C/C=K
As K>1 always, hence C>C i.e. the insertion of a dielectric between the plates of a parallel -plate capacitor always increases the capacitance.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Coulomb's Law - Grown-up Version
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon