ICS Part 2 Physics Chapter 12 Short Questions Preparation

Question # 1

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 # 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?

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 # 3

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.

Question # 4

What is strength of electric field inside a hollow charged sphere and why?

Ans 1: The strength of electric field inside a hollow charge is zero.inside a hollow charge sphere q=0.

Question # 5

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 # 6

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 # 7

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 # 8

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 # 9

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 # 10

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.

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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

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

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.

What is strength of electric field inside a hollow charged sphere and why?

State coulomb's law.

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

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?

What is meant by EEG and ERG?

What is photoconductor?

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

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

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.

What is strength of electric field inside a hollow charged sphere and why?

State coulomb's law.

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

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?

What is meant by EEG and ERG?

What is photoconductor?

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

Define electric polarization and electric dipole.

Define electrostatics and electric force,

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

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?

Define xerography and photoconductor.

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

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

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

What is meant by EEG and ERG?

Write down two difference between electric and gravitational force.

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?

Define electric intensity and give its unit.

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

What is photoconductor?

Define electric flux.Write its SI units.

Define xerography and photoconductor.

Define electrostatics and electric force,

Distinguished between electric field and field intensity.

ICS Part 2 Physics Chapter 12 Short Questions Preparation

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