The plates of parallel plate capacitor are charged upto 100 V. A 2 mm thick plate is inserted between the plates. Then to maintain the same potential difference, the distance between the plates is increases by 1.6 mm. The dielectric constant of the plate is-
Text Solution
Verified by ExpertsThe correct answer is:
A
initial
after putting slab of thickness t
here 
as 
hence if potential difference remains same then capacitance must remain same
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