The work done in bringing a unit positive charge from infinity to that point in an electric field is called:

The product of resistance and capacitance is

For computation of electric flux, the surface area should be

Which one of the following can be taken as measure of electric field intensity:

A Particle carrying a charge of 2e falls through a potential difference of 3V. The energy acquired by it will be:

The force between two similar unit charges placed one meter apart in air is:

If 2?F and 4?F capacitors are connected in parallel, the resultant capacitance is

When electron is brought near a - vely charged plate then its electrical P.E.

The electric field lines are closer where the field is:

The number of electrons in one coulomb charge is equal to:

Two charges q₁ and q₂ are placed in vacuum at distance d and force between them is F. If a mentioned of relative permittivity 4 is introduced between them then new force will be:

Which one of the following relations for the energy stored in capacitor is not correct?

The value of ?_o permittivity for free space is:

Photocopier and inkjet printer are the application of:

If 2?F and 4?F capacitors are connected in series, the resultant capacitance is

SI unit of permittivity of free space are:

If time constant in RC circuit is small, the capacitor is charged or discharged

Due to polarization, electric field E

If the potential difference across the two plates of a parallel plate capacitor is double then its energy stored in it will be:

4 x 10²⁰ eV energy is required to move a charge of 0.25 C from A to B the potential difference between A and B is

Three capacitor of 4?F each are to be connected in such a way that the net capacitance is 6?F. Then

An ECG records the_______between points on human skin generated by electric process in the heart:

Capacitance of parallel plate capacitor is:

For computation of electric flux, the surface area should be

The Electrostatic force between two charges is 42 N. If we place a dielectric of er.=2.1 between the charges, then the force become equal to:

Two point charges are +2C and +6C repel each other with a force of 12N. If a charge of -4C is given to each of these charges, the force now is

The electric field created by positive charge is:

If f₁ and ₂ are forces acting on ?-particle and electron respectively, when

The magnitude of an electric field E, such that an electron placed in it would be experience an electric force equal to its weight, is given by

When air is replaced by a dielectric medium of relative permittivity ?r, the maximum capacity of the condenser_____

A capacitor is charged to store energy U. the charging battery is disconnected. An identical capacitor is now connected in parallel to the first capacitor. The energy in each capacitor is

The electrostatic force of repulsion between two electrons at a distance 1m is:

The electric flux through closed surface depends upon.

Relative permittivity for air is:

If the medium between plates of a capacitor be air or vacuum, then the capacitance of capacitor is:

The unit of Electric intensity other than NC^-1 is:

Charge on an electron is:

Two charges 1 ?c and 5?c separated by 20cm, the ratio of electrical forces acting on them will be:

If potential difference across two plates of a parallel plates capacitor is doubled then the energy stored in it will be

Photocopier and inkjet printer are the application of:

The product of resistance and capacitance is

The constant of proportionality "K" depend upon:

Capacitance of a Capacitor in Vacuum is given by

Selenium is:

A parallel plate capacitor is first charged and then a dielectric slab is introduced between the plates. Which of the following quantity remain unchanged?

Which of the following is not the energy stored between the plates of a condenser?

The number of electrons in one coulomb charge is equal to

The energy stored in a charged capacitor is given by:

If a dielectric is placed between the plates of a capacitor, its capacitance

When dielectric is placed between the plates of capacitor, The value of E between the plates

The capacitance of a capacitor can be increased by

The relation "-?V/?r" represents

Capacitance of a capacitor does not depend upon:

The toner of the printer is given

A 1?F capacitor is subjected to 4000V potential difference the energy stored in capacitor is:

Electric intensity inside the hollow sphere is:

The product of resistance and capacitance is called

A charge Q is divided into two parts q₁ and q₂. The maximum coulomb repulsion between the two parts is obtained when ratio q₁/q₂ is.

If the separation between the plates of a capacitor is doubled then its capacitance become

When 10¹⁴ electron are removed from a neutral metal sphere then which of the following is the charge on sphere?

SI unit of electric flux is:

If a charged body is moved against the electric field, it will gain:

Due to polarization of the dielectric, the electric intensity between the plates of a capacitor:

A metallic ball having charge 10^-8C moves from a point A at potential 600V to a point B at zero potential. Which of the following is the change in its K.E.

Two copper spheres of same radii one hollow and other solid are charged to the same potential then.

The force between two point charges separated by air is 4 N. When separated by a medium of relative permittivity 2, the force between them becomes;

The energy stored in the capacitor is:

The electron volt is the unit of

A charge Q is enclosed in a dielectric of strength K the maximum number of electric lines of force are

If an insulating material called dielectric is introduced between the plates, the capacitance of capacitor is:

Two opposite point charge of same magnitude separated by distance 2d, electric potential mid-way between them is:

In a charged capacitor, the energy resides in:

If a metal plate is placed between two point charges then electrostatic force between them.

A parallel plate capacitor with oil between the plate(?_r = 2) has a capacitance "C". If oil is removed then capacitance of capacitor becomes.

The concept of electric field theory was introduced by

1 ohm x 1 farad is equal to

Which material sheet should be placed between the plates of a parallel plate capacitor in order to increase its capacitance?

One Joule is equal to

Special organ called Ampullae of lorenzini that are very sensitive to electric field are found in

Electric field and electric potential inside hollow charged conducting sphere are respectively.

One electron volt is equal to

Doubling the distance between the plates of a capacitor, the capacitance:

A charged conductor has charge on its:

If a charged capacitor is connected to earth its charge.

The product of resistance and capacitance is equal to

Dielectric constant ?_r can be defined as

Which of the following is the dielectric constant of metals?

Selenium is a:

An alpha particle is accelerated through potential difference of 10⁶V.Which of the following is its K.E?

Time constant is defined as the time during which a capacitor charges to_____ of its equilibrium value.

Due to polarization of the dielectric, the capacitance of the capacitor:

Charge on electron is:

Two equal and opposite equal charges separated by small distance are said to make a :

The value of Coulomb's constant (K) in SI units is

Selenium is a:

Electron volt is the unit of