ICS Part 2 Physics Chapter 17 Short Questions Preparation


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Short Questions Preparation

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Physics - ICS Part 2 Physics Chapter 17 Short Questions Preparation

Question # 1

How the conductivity of semiconductor can be raised?

  • Ans 1: The conductivity of a semiconductor can be raised by the process of doping in which small number of impurity atoms are added to pure semiconductors.
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ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 1

Question # 1

How the conductivity of semiconductor can be raised?

  • Ans 1: The conductivity of a semiconductor can be raised by the process of doping in which small number of impurity atoms are added to pure semiconductors.
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ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 2

Question # 1

What is meant by para and ferromagnetic substance?

  • Ans 1: The orbits and the spin axes of the electrons in an atom are so oriented that their field spot each other and the atom behaves like a tiny magnet.Substance with such atoms are called paramagnetic substance e.g iron.
    There are some solid substance in which the atom cooperate with each other in such a way so as to exhibit a strong magnetic field there are called ferromagnetic substance.
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ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 3

Question # 1

Define UTS of a material.

  • Ans 1: The maximum stress that a material can withstand is called ultimate tensile stress.
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ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 4

Question # 1

Distinguished between soft magnetic material and hard magnetic materials.

  • Ans 1: Soft magnetic: The materials in which their domains can be easily orientated on applying external magnetic field and also return to original positions when field is removes.E.g iron.
  • Ans 2: Hard magnetic:The material in which their domains can not easily orientated on applying external magnetic field.But once the domains are lined up by a very strong magnetic field,they will restrain their position after the removal of magnetic field.
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ICS Part 2 Physics Chapter 17 Short Questions Preparation