Question

What will happen if an electric current is flown in the circuit in the figure? Which material is present in the pencil? Which property of that material is found in this experiment?​

Answer 1

$\: \: \huge\mathbb\colorbox{black}{\color{white}{AnSwEr}}$

2] Which material is present in the pencil

⇒ Graphite is present in pencil Graphite is a gray to black, opaque mineral that is soft enough to leave a black mark. Graphite is used to make the writing cores of pencils.

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please post the image of the digram for 1st and 2nd question

Answer 2

If the current is flown in the circuit the bulb will light up.

• Graphite is present in the pencil.
• The material is typically grayish-black in color, opaque, and has a radiant black sheen. Graphite is a distinct material as it displays the properties of both a metal and a non-metal.
• The property of graphite that helps in the experiment is it is a good conductor of electricity( Due to the presence of free electrons) and good conductor of heat.

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