Q. As shown in the figure, a very thin sheet of aluminium is placed in between the plates of the condenser. Then the capacity
A) Will increase
B) Will decrease
C) Remains unchanged
D) May increase or decrease
Explanation
(c) Since aluminium is a metal, therefore field inside this will be zero. Hence it would not affect the field in between the two plates, so capacity $= \frac{q}{V} = \frac{q}{Ed}$ remains unchanged
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.