Question

A variable parallel plate capacitor and an electroscope are connected in

parallel to a battery. The reading of the electroscope would be

decreased by

(A) increasing area of overlap of the plates

(B) placing a block of paraffin wax between the plates

(C) decreasing the distance between the plates

(D) decreasing the battery potential
with reason
plz don't guess​

Answer 1

Answer:

A variable parallel plate capacitor and an Electroscope are connected in parallel to a battery the reading of the Electroscope would be decreased by

If it is connected in parallel to the capacitor, the potential across it will be equal to the potential across the capacitor, which is equal to the potential across the battery. On decreasing the battery potential, the potential difference across the electroscope reduces and hence the reading reduces.