Second Year Physics Chapter 6 Short Questions Online Preparation

Online Short Questions For Chapter 6 "12th Class Physics Chapter 6 Short Questions Preparation "

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Physics - 12th Class Physics Chapter 6 Short Questions Preparation

Question # 1

What is meant by hysteresis loss?

  • Ans 1: The area of the loop is the measure of the energy needed to magnetize and demagnetize the specimen during each cycle of the magnetizing current.This is energy required to do work against internal friction of the domains,this work is dissipated as heat.It is called hysteresis loss.
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Prepare Complete Set Wise Questions For Chapter 6 "12th Class Physics Chapter 6 Short Questions Preparation "

12th Class Physics Chapter 6 Short Questions Preparation - Set 1

Question # 1

What is meant by hysteresis loss?

  • Ans 1: The area of the loop is the measure of the energy needed to magnetize and demagnetize the specimen during each cycle of the magnetizing current.This is energy required to do work against internal friction of the domains,this work is dissipated as heat.It is called hysteresis loss.
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12th Class Physics Chapter 6 Short Questions Preparation - Set 2

Question # 1

Distinguished between elasticity and plasticity.

  • Ans 1: Elasticity: In deformed crystalline solid,the atoms return to their equilibrium position after the removal of external force.This ability of the body to return to its original shape is called elasticity.
  • Ans 2: Plasticity:If the stress is increased beyond elastic limit,the specimen becomes permanently deformed.This is called plasticity.
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12th Class Physics Chapter 6 Short Questions Preparation - Set 3

Question # 1

What are paramagnetic Substance?Give an example

  • Ans 1: The solid in which the orbital and spin axes of the electrons in an atom are so oriented that their magnetic field support each other are called paramagnetic substance.For example ozone,platinum etc
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12th Class Physics Chapter 6 Short Questions Preparation - Set 4

Question # 1

Define superconductors.

  • Ans 1: The materials whose resistivity becomes zero below a certain temperature are called superconductors.For example mercury becomes super conductor below 4.2 k temperature.
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