Get Insight in Engineering Concepts With Online Experts

Electrical engineering students will always have some or the other assignments or projects. The students feel it very complex and complicated as it contains circuits, devices, power calculation, numerical etc. Generally the engineering students will get assignments in the fields of electric motor technology, large scale electrical supply network, and electric control system in vehicles and so on. To develop the skills and train up the students to compete in the various subjects for new ideas, various colleges and universities give assignments. The students after having classes throughout the day feel very uncomfortable in doing their homework and related assignments.
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An electric field is the area of space neighboring various electrically charged particles and time-varying magnetic fields. The electric field presents the force exerted on other electrically charged objects by the electrically charged particle the field is surrounding. The concept of an electric field was established by Michael Faraday.

Quantitative definition

Electric fields are created by charges. Assume a stationary charge Q that is the “source charge” which creates an electric field E, and that another separate charge q that is a “test charge” is placed in the E-field generated due to Q.

Then, the electric field E is defined as the force F experienced by a stationary positive unit point charge q at position r in relation to Q in the field:

As the E field can differ from point to point in space, that is depends on r, it is a vector field. By Coulomb’s law, the E-field at a point in space due to Q is represented by:

Here r = |r| is the magnitude of the position vector, is the unit vector corresponding to, and ε0 is the electric constant.

From the definition, it is known that the direction of the electric field is the same as the direction of the force it would exert on a positively-charged particle, and contradictory the direction of the force on a negatively-charged particle.

According to Coulomb’s law, the electric field is reliant on position. Hence an electric field is defined with respect to a particular configuration of source charges.

https://blog.expertsmind.com/

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