comprehension for ques 38-40
Two parallel plate capacitors A and B have the same separation d=8.85×10-4 m between the plates. The plate area of A and B are 0.04 m2 and 0.02 m2 respectively. A slab of dielctric constant K=9 has dimensions such that it can exactly fill the plates of capacitor B
The dielctric slab is placed inside A as shown in figure. A is then charged to a potential difference of 110 V. The energy stored in capacitor A is
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