# Question: What is the electric field intensity at a point at a distance 20 cm?

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7×1013 V/m.

## What is the electric field intensity at a distance of 20cm from a charge?

4. What is the electric field intensity at a distance of 20cm from a charge 2 X 106 C in vacuum? = (2 X 106)/(4∏ X εo X 0.22) = 450,000 V/m.

## How do you find the electric field intensity of a point?

The electric field intensity at a point is the force experienced by a unit positive charge placed at that point.

1. Electric Field Intensity is a vector quantity.
2. It is denoted by ‘E’.
3. Formula: Electric Field = F/q.
4. Unit of E is NC1 or Vm1.
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## What is electric field intensity due to a point charge?

The electric field intensity at any point is the strength of the electric field at that point. It is defined as the force experienced by a unit positive charge is placed at a particular point. Here if force acting on this unit positive charge +q₀ at a point r, then electric field intensity is given by: →E(→r)=→F(→r)

## What is the intensity of electric field due to a proton at a distance?

Electric field at a distance r away from a charged particle with charge Q due to this particle is given by: E= kQ/(r^2) In this case, Q=+1.602 x 10^(-19) Coulombs. r=0.2 X 10^(-9) metres.

9×105V.

## What is the unit of electric field intensity?

The amount of force experienced by a unit charged particle when it is placed in the electric field is known as Electric field intensity. The S.I unit of electric field intensity is newton per coulomb.

## When electric field intensity E at any point in the electric field is directed towards or away from the same fixed point then the field is?

When electric intensity E at any point in the electric field is directed towards or away from the same fixed point, then the field is called a radial electric field.

## What is electric field intensity at a point at a distance r meters from Q Coulomb of charge in free space?

What is electric field intensity at a point at a distance r meter from q coulomb of a charge in free space ? E=14π∈0qr2 , where ∈0 is absoulute electrical permittively of free space.

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## What is the formula of electric intensity?

E = F/q——Eqn1

When considered in SI units the units of electric field intensity are Newton per coulombs. The electric field intensity is independent of the amount of charge on the test charge particle.

## How does the electric field at a point vary with distance from a point electric charge?

The electric field varies inversely as the square of the distance from the point charge.

## What is electric field intensity derive the expression for electric field intensity due to point charge at a distance r?

Electric field intensity at a point due to a charge is the force acting on a unit positive test charge when placed at the point. or →E=14πε0×qr2ˆr [∵K=14πε0].

## What is the magnitude of the electric field strength E such that an electron placed in the field would experience an electric force equal to its weight?

The magnitude of electric field intensity E such that an electron placed in it would experience an electrical force equal to its weight is given by ….. therefore electric field intensity E is given by mg/e.