ICS Part 2 Physics Chapter 12 Short Questions Preparation

Question # 1

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 # 2

What is capacitor?Define the capacitance.

Ans 1: Capacitor is a device used to store charge,
Capacitance is a measure of ability of capacitor to store charge.

Question # 3

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 # 4

Define electric polarization and electric dipole.

Ans 1: When dielectric is placed between the plants of capacitor,positive and negative charge of its molecules displace from their position.Positive charges are attracted towards negative plates and negative charges towards positive plate,dipoles are formed.This process is called polarization.
Two equal and opposite charges separated by a small distance is called dipole.

Question # 5

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 # 6

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 # 7

What depend on the slow or fast charging and discharging of a capacitor?

Ans 1: How fast or how slow the capacitor is charging or discharging depends upon the products of the resistance and the capacitance called time constant.Capacitor is charged or discharged rapidly when RC is small.

Question # 8

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 # 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

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.

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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

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

What is capacitor?Define the capacitance.

Define electric potential and give its SI units.

Define electric polarization and electric dipole.

Distinguished between electric field and field intensity.

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

What depend on the slow or fast charging and discharging of a capacitor?

Define electric intensity and give its unit.

What is meant by EEG and ERG?

Electric lines of force never cross why?

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

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

What is capacitor?Define the capacitance.

Define electric potential and give its SI units.

Define electric polarization and electric dipole.

Distinguished between electric field and field intensity.

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

What depend on the slow or fast charging and discharging of a capacitor?

Define electric intensity and give its unit.

What is meant by EEG and ERG?

Electric lines of force never cross why?

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

Define electron volt.

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?

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?

What is meant by EEG and ERG?

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

What is time constant?

Define xerography and photoconductor.

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

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

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?

Define electric flux.Write its SI units.

Write two properties of electric field.

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

Define Time constant for RC Circuit.

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

Define electric polarization and electric dipole.

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

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

What is time constant?

ICS Part 2 Physics Chapter 12 Short Questions Preparation

12th Class Physics
Short Questions Preparation