Physics Numerical for 10th Class Chapter13

Free electrons are ____________

The potential difference between two points is one volt. The amount of work done in moving a charge of one coulomb from one point to another is __________

The force per unit charge is known as a ___________

Electroscope can be charge by the process___________________

Electric charges can be produced by rubbing a neutral body with __________

Two 50µF capacitors are connected in parallel. The equivalent capacitance of the combination is _________

In Mica capacitors the dielectric is__________

The value of K is _________

• 8.85 x 10⁹ Nm²C^-2
• 9 x 10⁹ Nm²C^-2
• 6.67 x 10⁹ Nm²C^-2

Which Option is Correct ?

Variable capacitors are used in___________

Parallel plate capacitor consists of two metal plates separated by___________

If 4µF and 2µF capacitors are connected in series, the equivalent capacitance is given by______

Capacitors are used in resonant circuit that tune radios to particular frequency______

When an insulating rod is charged negatively, this is due to___________

Three capacitors C₁ C₂ and C₃ are connected in parallel as in the Fig. Their equivalent capacitance will be________

Electric field is strong when liens are __________

Work done in bringing a unit positive charge from infinity to that point in an electric field is called __________

The electron energy is one electron volt when it is accelerated through a potential difference of ________

Which is incorrect for parallel capacitor?

• V₁=V₂=V₃=V
• Q=Q₁+Q=+Q₃
• C=C₁+C₂+C₃
• Q₁=Q₂=Q₃=Q

Which Option is Correct ?

Which of the following is commercial type capacitor?

Metals are good conductors of electricity, because they have________

Electric field intensity is a vector quantity and its direction is___________

Which statement is true about electrical potential?

According to coulomb’s law, what happens to the attraction of two oppositely charged objects as their distance of separation increases?

Capacitor have different types depending upon__________

Which one of the following statements is correct?

If a glass rod is rubbed with a silk cloth, it receives charge by the process of _________

The electric intensity at infinite distance from the point charge is_____________

The space around the charge within which other charges are influenced by it. is called___

When a glass rod is rubbed with a silk cloth, then________

Electric field lines______________

In order to store the charge a device is used which is called ________

Five Joules of work is needed to shift 10C is charge form one place to another. The potential difference between the places is ____________

The equivalent capacitance is greater than individual capacitance in _________

Capacitance is defined as _____________

Study of charges at rest is called __________

A positive and negative charge are initially 4cm apart. When they are moved closer together so that they are now only 1cm apart, the force between them is __________

The number of electrons in one coulomb charge is equal to_______

• 6.25 x 10¹⁹
• 1.6 x 10^-19
• Zero
• 6.2 x 10²¹

Which Option is Correct ?

Which one of the following is correct?

• 1 µF = 10^-6F
• lρF = 10^-13F
• lρF =10^-6µF

Which Option is Correct ?

An object gain excess negative charge after being rubbed against another object______

Farad is defined as ___________

The coulomb’s law is valid for the charges which are ___________

In the presence of a charged body an insulated inductor develops positive charge at one end and negative charges at other end, this process is called the_______

SI unit of electric charge is________

Electron volt is the unit of ___________

The value of Coulomb’s constant K depends upon___________

The magnitude of the charge on the electron is ___________

• 1.2 x 10^-19 C
• 1.6 x 10^-19C
• 2.6 x 10^-19C
• 1.81 x 10^-19C

Which Option is Correct ?

When you rub a plastic rod against your hair several times and put it near some bits of paper the pieces of paper are attracted toward it. What does this observation indicate?

Only _________ type charges exist.

Two uncharged objects A and B are rubbed against each other when object B is placed near a negatively charged object C, the two objects repel each other which of the following statements is true about object A?

When capacitors are connected in series, their equivalent capacitance is equal to______

If the distance between the two charged bodies is halved, the force between them becomes______

An insulating rod is charged positively by rubbing. This is due to___________

SI unit of electric intensity is_________

• Nm^-1
• NC^-1    
• Nm^-2
• Nm

Which Option is Correct ?

An object gains excess negative charge after being rubbed against another object___

Capacitors are used in__________

One electron volt is equal to ___________

• 1.6 x10^-19J
• 1.6x10¹⁹J
• 6.25x10^-18J
• 6.25x10¹⁸J

Which Option is Correct ?

Which one is the fixed capacitor?

Electric potential is a __________

The electric force of repulsion between two electrons at a distance of 1-m is ___________

• 1.8N
• 1.5 x 10^-9N
• 2.30 x 10^-27N
• 2.30x10^-27N

Which Option is Correct ?

A body can be charged by a _____________

Which the correct statement?

Two charged spheres are separated by 2mm. which of the following would produce the greatest attractive force?

A radio tuning capacitor is a_______________

Like charges always___________ each other.

If the distance peewee two charges is doubled, the electric force between them will become ____

Who established fundamental law of electric force between two stationary charged particles?

A positive charge___________

Force of attraction or repulsion acts between__________

In variable capacitors, the value of capacitance can be___________

Force experienced by a unit positive charge placed at a point in the electric field is known as _____

SI unit of electric field intensity is ___________

A capacitor is a perfect insulator for __________

The work done in moving a unit positive charge form one point to another against the eclectic field is a measure of ____________

In fixed type of capacitors, the value of capacitance____________

__________at a point in an electric field is equal to amount of work done | in bringing unit positive charge from infinity to that point.

When capacitors are connected in parallel, their equivalent capacitance is equal to ______

A region around the charge in which it exerts electrostatic force on another charge is called_____________

Application of electrostatic is___________

Electroscope is an instrument used for ________

SI unit of capacitance is_________

If we run a plastic comb through hair and then bring it near shell pieces of paper. The comb________

In variable capacitors___________

A positive electric charge_________

The spacing between the field lines shows the_______

Electric charge of 100µC is 13m apart from another charge 16.9µC. The force between them in Newton is____________

• 9 x 10⁷
• 0.09
• 90
• 9 x 10⁵

Which Option is Correct ?

SI unit of K is ______________

• Nm²C
• Nm²C^-2
• N²m²C^-1
• None of these

Which Option is Correct ?

The capacitance C of a capacitor is given by the relation __________

Which one of the following statements is correct?