Paheli set up an experiment using liquid a and the beaker as shown in the figure she observed that the bulb glows then she replace the liquid a by another liquid bi this time the bulb does not glow Boojho suggested replacing the bulb by an LED. They observed that the LED glows.
Liquid A
(iii) Why the LED glows, when the bulb is replaced by an LED?
(iv) Write any one use of LED.
Answers
Answered by
2
Answer:
iii)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.
iv)for night lighting ,air lighting or as an indicator ,in automotives industries, in electrical appliances.
Answered by
1
Answer:
yes
Explanation:
iii) yes, she successed in connecting aluminium foil because aluminium is a good conductor of electricity and can conduct the electric current through it. hence, the bulb will glow and circuit will also be complet.
iv) LED glow in law electricity. So we can use it on dim light
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