ICS Part 2 Physics Chapter 17 Short Questions Preparation

Question # 1

What does are of hysteresis loop tell?

Ans 1: The area of the loop is the measure of the energy needed ti magnetize and demagnetize the specimen during each cycle of the magnetizing current,This is the energy required to do work against internal friction of the domains.This work is dissipated as heat.It is called hysteresis loss.

Question # 2

Define stress and write its formula.

Ans 1: It is defined as the force applied on unit are to produce any change in shape,volume or length of a body.Its formula is
Stress=Force/Area

Question # 3

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.

Question # 4

Define module of elasticity.

Ans 1: The ratio of stress to strain is constant for a given material ,provided the external applied force is not too great called modulus of elasticity.
modulus of elasticity=stress/strain

Question # 5

Define stress and strain,What are their units.

Ans 1: The force applied on unit area to produce any change in the shape,volume or length of the body is called stress,its SI units is pascal.
And strain is the measure of deformation of solid when stress is applied to it.It has no unit.

Question # 6

What is the difference between intrinsic and extrinsic semiconductors?

Ans 1: Intrinsic Semiconductor:A semiconductor in its extremely pure form is known as Intrinsicsemiconductors,Pure elements of silicon and germanium are Intrinsic semiconductors,These semiconductors elements have atoms with four valence electrons.
Ans 2: Extrinsic Semiconductor: The doped semiconductors material are called Extrinsic Semiconductor.The electrical behaviour of semiconductors is substantially changed introducing a small impurity into pure semiconductors,and this process is called doping.

Question # 7

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.

Question # 8

Define crystal lattice.

Ans 1: The whole structure obtained by the repetition of unit cell is known as crystal lattice.

Question # 9

Define Fracture stress.

Ans 1: Once the limit of ultimate tensile stress (UTS) is crossed,the material breaks and the stress is called fracture stress.

Question # 10

What is meant by Ferromagnetic substance?

Ans 1: In ferromagnetic substance the atoms cooperate with each other in such a away so as to exhibit a strong magnetic field.In ferromagnetic substance there exists a small region called domain.

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ICS Part 2 Physics Chapter 17 Short Questions Preparation

12th Class PhysicsShort Questions Preparation

12th Class Physics Chapter Wise Preparation

Online Short Questions For Chapter 6 "ICS Part 2 Physics Chapter 17 Short Questions Preparation "

Physics - ICS Part 2 Physics Chapter 17 Short Questions Preparation

What does are of hysteresis loop tell?

Define stress and write its formula.

How the conductivity of semiconductor can be raised?

Define module of elasticity.

Define stress and strain,What are their units.

What is the difference between intrinsic and extrinsic semiconductors?

What is meant by para and ferromagnetic substance?

Define crystal lattice.

Define Fracture stress.

What is meant by Ferromagnetic substance?

Prepare Complete Set Wise Questions For Chapter 6 "ICS Part 2 Physics Chapter 17 Short Questions Preparation "

Set 1

Set 2

Set 3

Set 4

ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 1

What does are of hysteresis loop tell?

Define stress and write its formula.

How the conductivity of semiconductor can be raised?

Define module of elasticity.

Define stress and strain,What are their units.

What is the difference between intrinsic and extrinsic semiconductors?

What is meant by para and ferromagnetic substance?

Define crystal lattice.

Define Fracture stress.

What is meant by Ferromagnetic substance?

ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 2

What are paramagnetic Substance?Give an example

Define UTS of a material.

How the conductivity of semiconductor can be raised?

Define insulators ,conductors and semiconductors.

What is meant by para and ferromagnetic substance?

Define polymeric solid with example.

What is meant by strain energy?

What is the difference between intrinsic and extrinsic semiconductors?

What is critical temperature in super conductivity?

Define elastic limit and Yield point.

ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 3

Define stress and strain,What are their units.

How can the strain energy be determined from the force extension graph?

What are glassy solids?Do they possessed property of flow?

Distinguished between a valence and a conduction band.

Distinguished between soft magnetic material and hard magnetic materials.

Define young modulus and shear modulus.

Define crystal lattice.

Define superconductors.

Define coercivity of a material.

What is meant by Ferromagnetic substance?

ICS Part 2 Physics Chapter 17 Short Questions Preparation - Set 4

What is meant by Ferromagnetic substance?

Define polymerization,write two examples of polymeric solid

What is critical temperature in super conductivity?

Define coercivity of a material.

Distinguished between a valence and a conduction band.

Define volumetric strain.

Write the used of superconductors.

Describe energy band picture of insulators.

Define UTS of a material.

What are glassy solids?Do they possessed property of flow?

ICS Part 2 Physics Chapter 17 Short Questions Preparation

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