# Is the correct expression for an electric field?

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Explanation: Electric field is the force per unit charge hence, the correct expression among the following is: E=F/Q.

## What is the expression for electric field?

In vector calculus notation, the electric field is given by the negative of the gradient of the electric potential, E = −grad V. This expression specifies how the electric field is calculated at a given point. Since the field is a vector, it has both a direction and magnitude.

## Which of the following expression is correct for electric field strength * e d’ee 2d TE Jtd E 2nd?

Electric intensity at any point in an electric field is equal to the at that point.

Q. Which of the following expression is correct for electric field strength ?
B. e = d2/t
C. e = jtd
D. e= nd2
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## What is SI unit of electric field?

The derived SI units for the electric field are volts per meter (V/m), exactly equivalent to newtons per coulomb (N/C).

## Which is not correct for electric field line?

Electric field lines never cross each other and point from positive toward negative charge. They do not form closed loops and always start from a positive charge and end on a negative charge. The correct answer is C.

## What is the expression of electric field at Axial point?

Hence, the electric field due to a dipole, at a given point on its axial line is →E=2kr3→P.

## What is the electric field and obtain the expression of electric field due to pointing?

We can find the electric field created by a point charge by using the equation E=kQr2 E = k Q r 2 .

## Which of the following equation is correct for electric field strength?

Strategy. Since the voltage and plate separation are given, the electric field strength can be calculated directly from the expression E=VABd E = V AB d . Once the electric field strength is known, the force on a charge is found using F = qE.

## Which of the following is the correct expression for the dielectric strength Mcq?

Explanation: The dielectric strength is also defined as the maximum potential gradient to which a dielectric can be subjected with insulation breakdown. The expression is: Vb/d, where Vb is the breakdown voltage and d is the thickness of the specimen.

## Which of the following will be deflected in electric field?

The alpha rays and beta rays get deflected by the electric field.

## What is electric field and its formula?

electric field, an electric property associated with each point in space when charge is present in any form. … The strength of an electric field E at any point may be defined as the electric, or Coulomb, force F exerted per unit positive electric charge q at that point, or simply E = F/q.

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## What is relation between electric field and force?

The electric field at a location indicates the force that would act on a unit positive test charge if placed at that location. … For a positive q, the electric field vector points in the same direction as the force vector. The equation for electric field is similar to Coulomb’s Law.

## What is electric field write its SI unit and dimension?

The electric field intensity due to a source charge at any point in its electric field is defined as the force experienced by a unit positive charge placed at that point.Mathematically it can be expressed asThe S.I. unit of electric field intensity is newton/coulomb it NC–1 or volt/ metreThe Dimension of electric field …

## What are electric field lines Class 12?

An electric field line is an imaginary line or curve drawn from a point of an electric field such that tangent to it (at any point) gives the direction of the electric field at that point.