Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 12-science Answered

Two metal plates form a parallel plate capacitor. The distance between the plates is d. A metal plate of thickness b=d/2 and same area is inserted completely between the plates. What is the ratio of the capacitance in the two cases?
Asked by nayanika das gupta | 05 May, 2011, 05:31: AM
answered-by-expert Expert Answer
When the metal plates of thickness b=d/2 is inserted between the parallel plate capacitor separated by a distance d, then the system is equivalent to the series combination of two capacitors, one is between the filled space by the metal plate and another is unfilled space between parallel plate capacitor.
The capacitance of the capacitor between metal plate of thickness d/2 is
 
And that between unfilled part will be
 
The equivalent capacitance will be
And the capacitance between the parallel plate capacitor when same area of metal plate is inserted  is
 
The required ratio of the capacitance is
 
Answered by | 08 May, 2011, 01:21: AM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 12-science - Physics
solve option e
question image
Asked by dasrituparna1999 | 13 Apr, 2024, 06:56: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
A parallel-plate capacitor has a plate area of 100c * m ^ 2 and a plate separation of 2.0 cm. has been charged up to 3000 V by a battery. Now, (i) after disconnecting the battery, (ii) keeping the battery connected, the distance between the plates is increased to 5.0 cm intensity of electric field between the plates and the energy of the capacitor. ( epsilon_{0} = 8.85 * 10 ^ - 12 * F * m ^ - 1
Asked by khankaifi178 | 08 Jan, 2024, 10:12: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
  A particle with charge q and mass m is released just outside the centre of a uniformly charged square plate of side a and potential V.find the speed in which the particle files off away from the plate
Asked by sankaraganapathy007 | 09 Sep, 2023, 10:03: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
obtain expression for force between plates of a charged parallel plate capacitor
Asked by bmahalik21 | 05 Mar, 2023, 08:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
What is capacitance
Asked by s3043632 | 22 Jan, 2023, 06:45: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
a conducting sphere is charged upto 2 uc. if the radius of sphere is 10 cm, then the electric field due to this charged system, at 5 cm from the centre of sphere, will be
Asked by carnivalgirl8421 | 29 Jun, 2022, 11:18: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
what is the dielectric
Asked by priyr7687 | 28 Jun, 2022, 06:19: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
the work done is moving charge of 2c across two point having a potential difference of 12volt
Asked by tahseenaamir07 | 25 Jun, 2022, 01:33: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
hello
question image
Asked by ekanathtanpure77 | 23 Jun, 2022, 07:56: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Calculate the capacitance of a parallel plate capacitor of each plate of which is of area 50cm^2 and and they are seperated by a dielectric slab of thickness 2mm of dielectric constant.
Asked by manandhiman023 | 13 Jun, 2022, 01:52: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×