Paheli 184 - Find one difference ? Riddles and Puzzles for IQ Test | Hindi Paheli #Shorts

Paheliyan and Detective Riddles To Test Your Brain| Hindi Paheliyan | Mind Your Logic

Colourless solutions of the following four salts are placed separately in four different test tubes and a strip of copper is dipped in each one of these. Which solution will turn blue?

(a) Find potential difference between A and B and C . (b) Find potential difference across capacitor C . (i) Find ratio of energy stored in capacitors, C_(1) and (C_2) (ii) If battery of emf of 2E is short -circuited, find charge flown in battery of emf 4E .