Question

what is insulator explain breifly

Answer 1

Answer:

Insulator are following : -

(1) In insulators the valence band is completely filled by electronics while conduction band is empty.

(2) The energy gap between valence band and conduction band in insulator very large.

(3) Thermal energy is not suficient to promote electrons from valence band to conduction band.

(4) Therefore, the conduction band in insulator remains vacant and does not allow the conduction of electricity.

Answer 2

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• the material have high resistivity and low conductivity that it's called insulator.

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• low-temperature. = > 0°( -274°C)
• room temperature = > 20°C or 27°C

1. at the room temperature valence electrons of insulator do not have enough energy to jump into the covalent bond therefore insulators do not have ability to conduct current.
2. insulator have high resistivity or extremely low conductivity at the room temperature.

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