Ramesh took two beakers A and B full of two various solutions when connected them to an electric circuit. In beaker A the bulb glows, in beaker B bulb doesn't glow why ? What are the solution may be ?

Take two beakers and prepare lead nitrate aqueous solution and potassium iodide aqueous solutions. What are the colours of the solutions? Now mix them in another beaker. What happens? What type of chemical reaction it is? What are products?

Two charged conducting spheres of radii a and b are connected to each other by a wire. What is the ratio of electric fields at the surfaces of the two spheres ? Use the reuslt obtained to explain why charge density on the sharp and pointed ends of a conductor is higher than on its flatter portions.

Consider the following two circuits [A] 20 bulbs are connected in series to a power supply line. [B] 20 bulbs identical to [A] are connected in a parallel circuit to an identical power supply line. Identify which of the following is not true?

A tester is used to check conduction of electricity through two liquids labelled A and B: It is found that the bulb of the tester glows brightly for liquid A while it glows very dimly for liquid B. What is your conclusion ?

A beaker is divided into two halves, A & B by a membrane freely permeable to the water but not to glucose. (Side A is filled with a solution of water with 2% glucose, while side B is filled with water and 4% glucose). Which best describes what will happen to this system?