ICS Part 2 Physics Chapter 12 Short Questions Preparation

Question # 1

Define Time constant for RC Circuit.

Ans 1: The time required by the capacitor to deposit 0.63 times the equilibrium charge q is called time constant.The product of R and C has the dimensions of time.So this product is known as time constant.
t=RC

Question # 2

Define electric intensity and give its unit.

Ans 1: The electrostatic force per unit test charge,at a specific point in the electric field is called electric field intensity.Its unit is NC^-1.

Question # 3

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

Ans 1: An apparatus will be shielded from electric field when it is kept inside the metallic box,so that the charge will only reside on the outer surface of the container.It is in accordance with Gauss law.

Question # 4

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

Ans 1: Yes, E is necessarily zero inside a charged rubber balloon if balloon is spherical.

Question # 5

How can you identify that when plate of capacitor is positively charged?

Ans 1: For the identification of positively charged plate of a capacitor golf leaf electroscope is used,For this purpose the plate of capacitor is brought near the positively charged disc of electroscope.If the divergence of the gold leaves increase then the capacitor will be positively charged and vice versa.

Question # 6

Do electrons tend to go region of high potential or low potential?

Ans 1: Electrons tend to go to a region of high potential from low potential because electrons are negatively charged.

Question # 7

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 # 8

Electric lines of force never cross why?

Ans 1: Electric lines of force never cross each other,This is because that electric field line has only one direction at any given point.If the lines cross ,electric field lines could have more than one direction which is not possible.

Question # 9

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 # 10

Define electrostatics and electric force,

Ans 1: Electrostatics: The branch of physics which deals with the study of stationary charges is called electrostatics.Electric force: The force which holds the negative and positive charges that make up atoms or molecule is called electric force.

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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

Define Time constant for RC Circuit.

Define electric intensity and give its unit.

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

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

How can you identify that when plate of capacitor is positively charged?

Do electrons tend to go region of high potential or low potential?

What is photoconductor?

Electric lines of force never cross why?

What is electric potential energy and electric potential difference?

Define electrostatics and electric force,

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

Define Time constant for RC Circuit.

Define electric intensity and give its unit.

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

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

How can you identify that when plate of capacitor is positively charged?

Do electrons tend to go region of high potential or low potential?

What is photoconductor?

Electric lines of force never cross why?

What is electric potential energy and electric potential difference?

Define electrostatics and electric force,

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

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?

Distinguished between electric field and field intensity.

Define Time constant for RC Circuit.

Center of planetary system is oppositely charged to the rest of planets.How orbits of planets would be modified?

What is time constant?

Define electric flux.Write its SI units.

How can you identify that when plate of capacitor is positively charged?

How can you identify that which plate of a capacitor is positively charged?

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

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?

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

Write two properties of electric field.

What is photoconductor?

Distinguished between electric field and field intensity.

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

Define electron volt.

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

Define electric flux.Write its SI units.

Define electrostatics and electric force,

How can you identify that which plate of a capacitor is positively charged?

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

ICS Part 2 Physics Chapter 12 Short Questions Preparation

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