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Definition- the electric field intensity is defined as the ratio of the force →F experienced by the charge and the amount of the charge q . ∴→E=→Fq. Force is a vector quantity. The SI unit of the electric field intensity is volt/meter or V/m.

## What is called electric field intensity?

The electric field intensity at a point is the force experienced by a unit positive charge placed at that point. Electric Field Intensity is a vector quantity. It is denoted by ‘E’. Formula: **Electric Field = F/q**.

## What is electric field write its SI unit?

Electric fields are important in many areas of physics, and are exploited practically in electrical technology. … The derived SI units for the electric field are **volts per meter (V/m)**, exactly equivalent to newtons per coulomb (N/C).

## What is intensity and its SI unit?

Intensity is an objective measure of the time-averaged power density of a wave at a particular location. The SI unit of intensity is **the watt per square meter** .

## Can electric field intensity be negative?

**An electric field can never be negative**. An electric field is a force experienced by the charge divided by the magnitude of the charge. … So even if the charge is negative in nature, its magnitude will also be positive and therefore, an electric field can never be negative.

## What is the formula for electric intensity?

Hint: The dimensional formula of electric field intensity can be found by using the dimensions of force and charge, as electric field intensity is the force per unit coulomb. Mathematically, **$E=dfrac{F}{q}$** , where E is electric field intensity, F is the force exerted on charge and q is charge.

## What is the SI unit of charge?

**Coulomb**, unit of electric charge in the metre-kilogram-second-ampere system, the basis of the SI system of physical units. It is abbreviated as C.

## What’s the SI unit of force?

The International System of Units (SI) is widely used for trade, science and engineering. The SI unit of force is **the newton, symbol N**. … The kilogram, unit of mass — symbol kg. The second, unit of time — symbol s.

## What is the SI unit of intensity of sound?

Sound intensity is the sound power per unit area, the SI unit is **watt per square metre (W/m ^{2})**. Sound pressure is the difference between the pressure caused. by a sound wave and the ambient pressure of the medium it is passing through.

## What is intensity equal to?

Intensity is defined to be the power per unit area carried by a wave. … In equation form, intensity I is **I=PA I = P A** , where P is the power through an area A. The SI unit for I is W/m^{2}.

## Can an electric field be zero?

For like charges, the electric field will be zero closer to the smaller charge and will be along the line joining the two charges. For opposite charges of equal magnitude, **there will not be any zero electric fields**.

## Can electric fields be positive or negative?

**Electric field is not negative**. It is a vector and thus has negative and positive directions. An electron being negatively charged experiences a force against the direction of the field.