Why does resistance of a metallic conductor increase with increase in

1.	Why does resistance of a metallic conductor increase with increase in temperature?
Answer» Valence shell where the valence electrons are present which are loosely held and are easily removed from the metal atom. The rest part of the atom which consists of the nucleus and all the shells except the valence shell is called the kernel. According to electron gas theory, a metal is a sea of valence electrons where the positively charged kernels are dipped or immersed. The valence electrons can flow throughout the body of the metal. With the increase in temperature the kernels vibrate with greater amplitude and creates greater obstacles to the path of free electrons .i. e. the metal’s resistance to the movement of electrons increase.

Why does resistance of a metallic conductor increase with increase in temperature?

Answer»

Valence shell where the valence electrons are present which are loosely held and are easily removed from the metal atom.

The rest part of the atom which consists of the nucleus and all the shells except the valence shell is called the kernel. According to electron gas theory, a metal is a sea of valence electrons where the positively charged kernels are dipped or immersed. The valence electrons can flow throughout the body of the metal.

With the increase in temperature the kernels vibrate with greater amplitude and creates greater obstacles to the path of free electrons .i. e. the metal’s resistance to the movement of electrons increase.

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