| ⇦ | 
| ⇨ |
A parallel plate capacitor of a capacitance 1 pF has seperation between the plates is d. When the distance of seperation becomes 2d and wax of dielectric constant x is inserted in it the capacitance becomes 2 pF. What is the value of x?
Options
(a) 2
(b) 4
(c) 6
(d) 8
Correct Answer:
4
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - Two wheels having radii in the ratio 1:3 are connected by a common belt
- The work function of metals is in the range of 2 eV to 5 eV.
- A concave mirror of focal length f₁ is placed at a distance d from a convex lens
- Two concentric coils each of radius equal to 2π cm are placed at right angles
- The radius of orbit of a planet is two times that of the earth. The time period
Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Two wheels having radii in the ratio 1:3 are connected by a common belt
- The work function of metals is in the range of 2 eV to 5 eV.
- A concave mirror of focal length f₁ is placed at a distance d from a convex lens
- Two concentric coils each of radius equal to 2π cm are placed at right angles
- The radius of orbit of a planet is two times that of the earth. The time period
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
C=Akepslan not/d
If 1pf=k/d
So relation,
2pf=4x/2d so it can com 2pf.
Bhaiya dekho salon ne dala nahi tha explanation hum likh rahe hain.
Before C =1pF
After when d is doubled and dilectric is inserted
C=2pF
So x-
Since C=(ε0.A/d)k after intertion of dielectric
2=(ε0.A/2d)k (given)
2=(C/2)k
2=k/2. (Given)
K=4