In electrophlaing , the metal that is no...

In electrophlaing , the metal that is not used for plating is

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The distance between the plates of a charged parallel plate copacitor is 5cm and electric field inside the plates is 200V cm^(-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-

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