Question -
Answer -
(a)┬аDielectric constant of the mica sheet,┬аk┬а=6
Initial capacitance,┬аC┬а=1.771 ├Ч 10тИТ11┬аF

Supply voltage,┬аV┬а= 100 V

Potential across the plates remains 100 V.
(b)┬аDielectric constant,┬аk┬а= 6
Initial capacitance,┬аC┬а=1.771 ├Ч 10тИТ11┬аF

If supply voltage is removed, then there will be noeffect on the amount of charge in the plates.
Charge = 1.771 ├Ч 10тИТ9┬аC
Potential across the plates is given by,
