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

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

Ans 1: No,the total flux does not depend upon the shape or geometry of the closed surface,It depends upon medium and charge enclosed.

Question # 3

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 # 4

Define electric potential and give its SI units.

Ans 1: The electric potential at any point in an electric field is equal to work done in bringing a unit positive charge from infinity to that point keeping it in equilibrium.Its SI unit is Volt (V).

Question # 5

Describe the force or forces on a positive point charge when placed between parallel plate,with similar and equal charges.

Ans 1: When a positive point charge is placed between parallel plates with similar and equal charges,then the electric field intensity due to one plate is equal in magnitude but opposite in direction of electric intensity due to other plate.So the value of resultant electric field intensity E is zero,Hence the net force on the positive charge is zero,Thus is will remain at rest.

Question # 6

What is meant by EEG and ERG?

Ans 1: Electroencephalography: is usually applied over human brain to check its abnormal behaviour by the use of electrical energy.For this electrodes are connected to the selected portion of the head and the corresponding response is seen graphically through the screen of a recording device.
Ans 2: Electrocardiography: records the voltage between points on human skin generated by the electrical process in the heart,It is made in running position providing information about hearts performance under stress.

Question # 7

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 # 8

State coulomb's law.

Ans 1: It states that the force of attraction or repulsion between two point charges is directly proportional to the product of the magnitudes of charge and inversely proportional to the square of the distance between them.

Question # 9

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

Ans 1: It would add or subtract the gravitational force if the charge was ;large enough and the sun was charged.So the radius of the orbits would be changed

Question # 10

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.

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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.

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

What is electric potential energy and electric potential difference?

Define electric potential and give its SI units.

Describe the force or forces on a positive point charge when placed between parallel plate,with similar and equal charges.

What is meant by EEG and ERG?

Define electric flux.Write its SI units.

State coulomb's law.

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

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

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.

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

What is electric potential energy and electric potential difference?

Define electric potential and give its SI units.

Describe the force or forces on a positive point charge when placed between parallel plate,with similar and equal charges.

What is meant by EEG and ERG?

Define electric flux.Write its SI units.

State coulomb's law.

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

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

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

State coulomb's law.

Write down two difference between electric and gravitational force.

Define electric polarization and electric dipole.

What is time constant?

Define Time constant for RC Circuit.

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.

How sharks looks their prey?

What is photoconductor?

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

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

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?

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

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

Describe the force or forces on a positive point charge when placed between parallel plate,with similar and equal charges.

Why do the electrons tend to go to region of high potential?

How sharks looks their prey?

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

Electric lines of force never cross why?

Give the statement of Gauss's law.

What is Potential Gradient?

ICS Part 2 Physics Chapter 12 Short Questions Preparation

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