Question

Mini set up an experiment using liquid A in the beaker as shown in the fig. She observed that the bulb glows. Then she replaced the liquid A by another liquid B. This time the bulb did not glow. Eva suggested replacing the bulb by an LED. To her surprise, Mini observed that the LED glows. Explain

Answer 1

LED can convert very low electrical energy(voltage) to light energy easily, but a normal bulb can't. So in liquid B even though the current flow is weak, LED bulbs are able to glow.

Answer 2

Answer:

See this answer --

Explanation:

The LED can consume very less voltage to convert it to light energy but the bulb needs a high amount of electricity which the liquid B either has low current or its a insulator of electricity so , in short LED bulb glows in little electricity but the bulb needs a whole lot of energy to glow

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