ICS Part 2 Physics Chapter 12 Short Questions Preparation

Question # 1

How sharks looks their prey?

Ans 1: Sharks have special organs,called the ampullae of Lorenzini that are very sensitive to electric field and can detect potential difference of the order of nano volt and can locate their prey very precisely.

Question # 2

Describe the force on positive charge when placed between parallel plates with opposite and equal charges.

Ans 1: When a positive point charge is placed between parallel plates with opposite but equal amount of charge ,then electric field intensity due to one plate is equal in magnitude but in same direction of the electric field intensity due to the other plate.So the value of resultant electric field intensity is non-zero.Hence the point charge will be accelerated towards negative plate.

Question # 3

Define xerography and photoconductor.

Ans 1: Xerograph is a photocopying process,It is taken from the Greek word "xeros" and "graphos" when mean dry writing.
Photoconductor is an insulator in the dark and becomes a conductor when exposed to light.

Question # 4

What is electric potential energy and electric potential difference?

Ans 1: Electric potential energy: The energy is acquired by unit positive charge in carrying it from one point to the other against the electric field keeping it in electrostatic equilibrium is called as electric potential energy,It is the energy stored in the charge 'q' because of its position in an electric field.It is measured in joules.
Ans 2: Electrical potential difference: The electric potential difference between two points is defined as the work done in carrying a unit a positive charge from one point to other point while keeping the charge in electrostatic equilibrium.

Question # 5

Write two properties of electric field.

Ans 1: 1.Electric field line originate from positive charge and end om negative charges.
2.The tangent to a field line at any point gives the direction of the electric field intensity at the point.

Question # 6

Define electric flux.Write its SI units.

Ans 1: The number of the field lines passing through a certain element of area is known as electric flux through that area.Its SI units is Nm²C^-1.

Question # 7

Is it true that Gauss's law states that the total number of lines of forces crossing any closed surface in the outwards direction is proportional to the net positive charged enclosed within surface?

Ans 1: Yes the above statement is true,The total number of lines of force crossing any close surface in the outwards directions means electric flux.

Question # 8

A point charge move rectilinear path in an electric field.Explain.

Ans 1: If a point charge q of mass m is placed at any point in the field in the point,it will follow straight or rectilinear path along the field line due to repulsive force.

Question # 9

What is photoconductor?

Ans 1: A material which behaves as an insulator when it is in dark and becomes conductor when it is exposed to light is known as photoconductor.

Question # 10

Distinguished between electric field and field intensity.

Ans 1: Electric Field: The space or region around the charge in which it exerts its electric force on other charges is called electric field.
Ans 2: Electric field intensity: At any point in electric field the force experienced by a point charge q is termed as electric or strength at that point.

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ICS Part 2 Physics Chapter 12 Short Questions Preparation

12th Class PhysicsShort Questions Preparation

12th Class Physics Chapter Wise Preparation

Online Short Questions For Chapter 1 "ICS Part 2 Physics Chapter 12 Short Questions Preparation "

Physics - ICS Part 2 Physics Chapter 12 Short Questions Preparation

How sharks looks their prey?

Describe the force on positive charge when placed between parallel plates with opposite and equal charges.

Define xerography and photoconductor.

What is electric potential energy and electric potential difference?

Write two properties of electric field.

Define electric flux.Write its SI units.

Is it true that Gauss's law states that the total number of lines of forces crossing any closed surface in the outwards direction is proportional to the net positive charged enclosed within surface?

A point charge move rectilinear path in an electric field.Explain.

What is photoconductor?

Distinguished between electric field and field intensity.

Prepare Complete Set Wise Questions For Chapter 1 "ICS Part 2 Physics Chapter 12 Short Questions Preparation "

Set 1

Set 2

Set 3

ICS Part 2 Physics Chapter 12 Short Questions Preparation - Set 1

How sharks looks their prey?

Describe the force on positive charge when placed between parallel plates with opposite and equal charges.

Define xerography and photoconductor.

What is electric potential energy and electric potential difference?

Write two properties of electric field.

Define electric flux.Write its SI units.

Is it true that Gauss's law states that the total number of lines of forces crossing any closed surface in the outwards direction is proportional to the net positive charged enclosed within surface?

A point charge move rectilinear path in an electric field.Explain.

What is photoconductor?

Distinguished between electric field and field intensity.

ICS Part 2 Physics Chapter 12 Short Questions Preparation - Set 2

How sharks looks their prey?

Define electrostatics and electric force,

What is the effect of medium between the charges upon coulomb's force?

Is E is necessary zero inside a charged rubber balloon if balloon is spherical?

Define electric intensity and give its unit.

Define Time constant for RC Circuit.

If a point charge q of mass is released in a non-uniform electric field with field lines pointing in the same directions,will it make rectilinear motion?

Describe the force on positive charge when placed between parallel plates with opposite and equal charges.

Suggest a method 'shield' an apparatus from electric field even when it is to be kept in the region where electric field is present.

What is electric potential energy and electric potential difference?

ICS Part 2 Physics Chapter 12 Short Questions Preparation - Set 3

What is electric potential energy and electric potential difference?

If a point charge q of mass is released in a non-uniform electric field with field lines pointing in the same directions,will it make rectilinear motion?

Does the total flux depend upon the shape or geometry of the closed surface?

Suggest a method 'shield' an apparatus from electric field even when it is to be kept in the region where electric field is present.

What is meant by EEG and ERG?

What is time constant?

How sharks looks their prey?

Define xerography and photoconductor.

Is E is necessary zero inside a charged rubber balloon if balloon is spherical?

Define electric potential and give its SI units.

ICS Part 2 Physics Chapter 12 Short Questions Preparation

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