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Related Concept Videos

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The Earth is a good conductor of electricity, and it is so big that it can be considered an infinite source or sink of charges. It can easily exchange charges with any matter.
Generally, conductors like metals do not allow any excess charge to be present on them. Any excess charge added to metals easily flows away, for example, when a metal is placed on the Earth. This process is called earthing.
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Electric charge is the most fundamental quantity in an electric circuit. The effects of electric charge are encountered daily, such as when a wool sweater sticks to the human body or when a person receives a shock while walking on a carpet.
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Imagine a bucket of water. It contains many molecules, of the order of 1026 molecules. Thus, although it contains discrete elements (molecules) at the microscopic level, macroscopically, it can be considered continuous. Small volume elements of water, infinitesimal compared to the bulk of the bucket's volume, still contain many molecules. Under this framework, quantized matter is approximated as continuous for practical purposes.
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The electric potential energy of a test charge in a uniform eclectic field can be generalized to any electric field produced by static charge distribution. Consider a positive test charge in an electric field produced by another static positive charge. If the test charge is moved away from the static charge, then the electric field does the positive work on the test charge, and the electric potential energy of the test charge decreases as it moves away from the static charge. Here the electric...
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Dynamic charging as a complementary approach in modern EV charging infrastructure.

Duc Minh Nguyen1, Mustafa A Kishk2, Mohamed-Slim Alouini1

  • 1Computer, Electrical and Mathematical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.

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Summary

Integrating wireless dynamic charging roads with traditional electric vehicle (EV) stations significantly improves daily commutes by reducing detours and charging time. This hybrid approach supports faster EV adoption.

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Area of Science:

  • Transportation Engineering
  • Sustainable Energy Systems
  • Urban Planning

Background:

  • Electric vehicles (EVs) are crucial for global sustainability, but their adoption is hindered by limited charging infrastructure.
  • Diverse charging needs require innovative solutions beyond traditional charging stations.

Purpose of the Study:

  • To investigate the synergistic benefits of combining traditional charging stations with wireless dynamic charging roads for EV users.
  • To evaluate the impact of this integrated infrastructure on daily commutes, focusing on time and convenience.

Main Methods:

  • Computer simulations were employed using authentic transportation datasets from New York City, USA.
  • Quantifiable metrics, including travel time and convenience, were used for evaluation.

Main Results:

  • Integrating wireless dynamic charging roads with traditional stations substantially alleviates detours for EV users.
  • This hybrid infrastructure remarkably reduces additional charging time, enhancing user convenience.

Conclusions:

  • The findings support the exploration of future EV charging infrastructures, particularly wireless dynamic charging roads.
  • Encourages collaboration among researchers, manufacturers, urban planners, and policymakers to advance EV infrastructure development.