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  4. Electrically, an isolated p-type semiconductor is

Q. Electrically, an isolated p-type semiconductor is

 1338  239 NTA AbhyasNTA Abhyas 2020Semiconductor Electronics: Materials Devices and Simple Circuits Report Error

Solution:

Semiconductors are made of atoms. All atoms are electrically neutral.
Mere presence of an electron or a hole doesn't make it charged as in p type or in n type semiconductor, electrons and protons are equal in number.