Coulomb's law holds only for

The magnitude of electric intensity due to point charge q at a distance r in free space is

The electric flux through any surface depends upon

Electric flux is zero, when area is held____ to electric field

A capacitor is a perfect insulator for

Capacitor is a device used for storing

The magnitude of the electric field between two separated plates can be calculated by the relation

The electric intensity at the mid point of the line joining the two like charges of same magnitude is

The electric lines of force for a positive sheat of charge

The direction of field lines around a negative point charge is

If the electric force between two charges is one newton, then the charges are

The concept of electric field theory was introduced by

Electric potential is a :

The unit of capacitance is

Electric flux is maximum when area is held ____ to field

For a capacitor, the charge per unit volt is called

The value of ?_r for Various dielectrics is always

The electrostatic force of repulsion between two Charge of magnitude 1C each lying at a distance of 1 m is

The electric potential is constant through out a region of space, the electric field in this region will be

The electric field can not deflect

Intensity of electric field inside a hollow metallic charged sphere will be:

A charge at rest creates around it

The electric flux ? through a closed surface having a charge 'q' at its centre is

The value of electrostatic constant k (i.e., 1/4??₀) is

Heart of photo copier is

1 volt/meter is equal to:

The electric flux through a plane area will be half of its maximum value when area is held at angle of _____ with electric field

coulomb's force is

Whcn an insulator (i.e., dielectric) is placed between the charges, the force between the charges, as compared to vacuum

According to Gauss's law, the flux(?_e) through a closed surface is proportional to [Q is the charge enclosed]

Which one of the following quantities is vector?

In SI units, the value of permittivity of free space (?₀) is

If 2C charge is given to two oppositely charged bodies having charge 2C each, then force between them becomes

The capacitance of a capacitor depends upon the

It can be shielded

The inkjet print head ejects a steady flow of

Millikan devised a technique for the measurement of the charge on an

Electron volt is the unit of

During photocopy, the dark areas of documents retain their:

The study of electric charges at rest under the action of electric force is known as

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

The strenght of the field at any point is known as

The ability of a capacitor to store charge is called as

One electron volt (eV) is equal to

An inkjet printer in its operation uses:

The effective capacitance is reduced when capacitor are connected in

The number of electrons in one coulomb charge is equal to . [Hint : q= ne]

In millikan's method, in order to calculate mass of droplet, electric field is

Electric flux is a:

"Xerography" means

Electric field intensity at a point is defined by the relation

Coulomb / Volt is the unit of

Coulomb's law is in accordance with Newton's

The lines of force never be

The SI unit of potential difference is

The work done in moving a unit positive charge from one point to another against the electric field is a measure of:

If the distance between two point charges is reduced to half, the force becomes

The direction of field lines around a positive point charge is

One joule is equal to

In Millikan's oil drop method, the oil droplet is suspended between plates if

Electrostatic force is

The force per unit charge at a point in an electric field known as

If a charge of 10 ?C experience a force of 10^{-2 N at a point, then electric intensity at that point is:}

The charge on the droplet in millikan experiment is calculated by using the formula

The number of electric field lines passing through a certains elements of area is called

If a charge body is moved against the electric field it will gain

The electric intensity at infinite distance from the point charge is

The capacitance of a capacitor is given by

A particle carrying a charge of 2e falls through a potential difference of 3.0 V . The energy acquired by it will be:

The value of coulomb's constant k depends upon

Michael Faraday introduced the concept of:

Electric potential is the characheristic of

Joule / coulomb is the unit

The electric field as a potential gradient can be expreassed as:

When a dialectic is placed between the two plates of a charged capacitor which one of the following quantity decrease does not change

When a dialectic is placed between the two plates of a charged capacitor which one of the following quantity changes:

Sharks can detect the potential difference of the order of

Work done per unit charge is called

Test charge is always a unit

Identify the practical application of electrostatics

Electric field will be uniform if field lines are

Number of electric lines that can be drawn from a point charge is

The drum in a photocopies is coated with a layer of

N/C is not the unit of

The electrostatic force as compared to the gravitational force is

Flux passing through an area A? will be positive, when angle between E? and A? will be

The earth's potential is considered as:

SI unit of electric flux is:

A special dry, black power which is spread over the drum of photocopier is called

If we move away from a charge, the magnitude of electric intensity will

SI unit of electric field intensity is

Electric flux through a closed surface depends upon

Dot product of electric intensity and plane vectore area elements is called

The product of charge and potential difference is:

Unit of relative permittivity is

Gauss's law can only be applied to: