ICS Part 2 Physics Chapter 12 Short Questions Preparation

Question # 1

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 # 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

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 # 4

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 # 5

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 # 6

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

Ans 1: When a positive point charge is placed between parallel plates with opposite but equal amount of charge ,then electric field intensity due to one plate is equal in magnitude but in same direction of the electric field intensity due to the other plate.So the value of resultant electric field intensity is non-zero.Hence the point charge will be accelerated towards negative plate.

Question # 7

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 # 8

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

Ans 1: Gold leaf electroscope is used,To check the polarity,disc of positively charged electroscope is brought close to the capacitor plate.If the divergence of gold leaves increases;the plate is positively charged and vice versa.

Question # 9

What is time constant?

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

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

Electric lines of force never cross why?

Define electric intensity and give its unit.

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

What is electric potential energy and electric potential difference?

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?

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

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

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

What is time constant?

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

Electric lines of force never cross why?

Define electric intensity and give its unit.

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

What is electric potential energy and electric potential difference?

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?

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

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

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

What is time constant?

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

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

Write two properties of electric field.

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

Define electric polarization and electric dipole.

What is meant by EEG and ERG?

Electric lines of force never cross why?

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

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

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

Write down two difference between electric and gravitational force.

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

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 electron volt.

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

Write two properties of electric field.

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

Define electric potential and give its SI units.

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

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

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

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

ICS Part 2 Physics Chapter 12 Short Questions Preparation

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