Question

paheli set up an experiment using liquid A in the breaker she observed that the bulb glows. then, she replaced the liquid A by another liquid B this time the bulb did not glow boojho suggested replacing the bulb by an LED they observed that the LED glows. explain.

Answer 1

the water in B was pure mean no. minerals in water B

Answer 2

The current through liquid B could be weak and therefore unable to make the bulb glow. However it was strong enough for the LED to glow