Question

Q.17
The distance between the plates of a
charged parallel plate capacitor is 5 cm and
electric field inside the plates is 200 Vcm-1.
An uncharged metal bar of width 2 cm is
fully immersed into the capacitor. The
length of the metal bar is same as that of
plate of capacitor. The voltage across
capacitor after the immersion of the bar is -
(A) zero (B) 400 V (C) 600 V(D) 100 V​

Answer 1

sorry this answer is very hard for me because i studies in class 10th so sorry therefore i fell very sad .