ICS Part 2 Physics Chapter 12 Short Questions Preparation

Question # 1

Write down two difference between electric and gravitational force.

Ans 1: Differences:Electrical force is might be attractive as well as repulsive while the gravitational force is only attractive.Electrostatics force is medium dependent while the gravitational force is not.

Question # 2

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

Ans 1: .If an insulating material i.e direction is places between the charges ,it will reduce the electrostatic force as compared to free space by factor called relative permittivity.

Question # 3

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 # 4

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 # 5

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 # 6

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 # 7

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 # 8

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 # 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

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.

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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

Write down two difference between electric and gravitational 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 flux.Write its SI units.

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

Electric lines of force never cross why?

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

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?

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

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

Write down two difference between electric and gravitational 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 flux.Write its SI units.

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

Electric lines of force never cross why?

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

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?

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

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

Define electric polarization and electric dipole.

Write two properties of electric field.

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

How sharks looks their prey?

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

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

Define electric intensity and give its unit.

Distinguished between electric field and field intensity.

Define electron volt.

State coulomb's law.

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

Define electron volt.

Define electrostatics and electric force,

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

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

State coulomb's law.

Define electric intensity and give its unit.

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

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

Electric lines of force never cross why?

Define Time constant for RC Circuit.

ICS Part 2 Physics Chapter 12 Short Questions Preparation

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