ICS Part 2 Physics Chapter 12 Short Questions Preparation

Question # 1

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 # 2

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 # 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

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 # 5

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 # 6

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 # 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

Define electron volt.

Ans 1: It is defined as The amount of energy acquired or lost by an electron when it is displaced across two points having potential difference of one volt.It is measure on electrons volts.

Question # 9

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 # 10

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.

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

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

Define electric potential and give its SI units.

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

What is meant by EEG and ERG?

Define Time constant for RC Circuit.

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

Define electron volt.

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

Define electric intensity and give its unit.

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

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

Define electric potential and give its SI units.

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

What is meant by EEG and ERG?

Define Time constant for RC Circuit.

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

Define electron volt.

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

Define electric intensity and give its unit.

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

Electric lines of force never cross why?

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

Write down two difference between electric and gravitational force.

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

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

Define electron volt.

Define electric flux.Write its SI units.

What is time constant?

Give the statement of Gauss's law.

State coulomb's law.

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

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

What is time constant?

Define electric potential and give its SI units.

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

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

Distinguished between electric field and field intensity.

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

What is Potential Gradient?

What is photoconductor?

ICS Part 2 Physics Chapter 12 Short Questions Preparation

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