The SI unit of electric flux is
The SI unit of electric flux is
Show Hint
Electric flux is the rate of flow of an electric field through an area.
- $N\,C^{-1}\,m^2$
- $N\,C\,m^{-2}$
- $N\,C^{-2}\,m^2$
- $N\,C^{-1}\,m^{-2}$
The Correct Option is A
Approach Solution - 1
The correct answer is Option A) \(N\,C^{-1}\,m^2\)
As electric flux, \(\phi=E\cdot\Delta s\)
Unit of electric field = N/C
Unit of area= m*m
\(\therefore\) The SI unit of electric flux is (\(\phi\)) NC-1m2
Read more from the chapter: Electric Charge and Field
Approach Solution -2
The correct answer is Option A) \(N\,C^{-1}\,m^2\)
Real Life Applications
The SI unit of electric flux, the Weber, is used in:
- For magnetic resonance imaging (MRI), to determine the strength of the magnetic field.
- The strength of the electric field can also be measured which will help in the acceleration process.
- In plasma physics.
- The performance of electronic devices can be tracked.
Question can also be asked as
- What is the SI unit of electric flux?
- How is electric flux measured?
- What is the relationship between electric flux and electric field?
Approach Solution -3
The correct answer is Option A) \(N\,C^{-1}\,m^2\)
Electric flux is the rate of flow of an electric field through an area. This flux is proportional to the electric field that passes through the surface.
Properties of flux
- It is the presence of force filed in the medium.
- Flux are the lines shown in the planes that contain electric and magnetic poles.
- The total flux is given by the formula E.A. where E is the electric field and A is the area.
- The SI unit of electric flux is NC⁻¹ m²
- It is denoted by a symbol Φ (phi)
- Electric flux will be negative when the area vector and electric field are antiparallel.
Applications of electric flux
- It determines the electric field.
- It can evaluate the electric field in a complex figure.
- Gauss's law is an important theorem that uses this concept.
Read more:
| Related concepts | ||
|---|---|---|
| Electromagnetic field | Electric field | Charge |
| Force | SI Unit | Coulomb's law |
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Concepts Used:
Electric Current
Defining Electric Current
It is the rate of flow of electrons in a conductor. SI Unit - Ampere (A).
Electrons are negatively charged particles hence when they move a number of charges moves.
Note:- The ability of a particular substance to conduct electricity depends on the number of electrons that are able to move . Some of the materials allow current to flow better than others.
What is an Electromotive Force?
If a force acts on electrons to make them move in a particular direction, then up to some extent random motion of the electrons will be eliminated. An overall movement in one direction. The force which acts on the electrons to move them in a certain direction is known as electromotive force and its quantity is known as voltage and is measured in V.