Electrical Engineering
Electrical Engineering - Related Videos
08:38
Engineering Skeletal Muscle Tissues from Murine Myoblast Progenitor Cells and Application of Electrical Stimulation
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Cited by 40 •
2013
Engineered muscle tissue has great potential in regenerative medicine, as disease model and also as an alternative source for meat. Here we describe the engineering of a muscle construct, in this case from mouse myoblast progenitor cells, and the stimulation by electrical pulses.
04:46
Changing the Direction and Orientation of Electric Field During Electric Pulses Application Improves Plasmid Gene Transfer in vitro
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Cited by 2 •
2011
Gene transfection by electroporation is improved approximately two times when orientation of electric field is changed during pulse application, while cell viability is not affected. The increase in gene transfection is caused by the increase of the membrane area which is made competent for DNA entry into the cell.
04:42
Micro-scale Engineering for Cell Biology
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2007
06:50
Electric Potential
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2023
Source: Yong P. Chen, PhD, Department of Physics & Astronomy, College of Science, Purdue University, West Lafayette, IN Electric potential, also known as "voltage", measures the electric potential energy per unit charge. Electric field is a scalar quantity and is fundamental to many electrical effects. Like potential energy, what is physically meaningful is the difference in the electric potential. For example, the spatial variation in the electric potential is related to the electric...
10:38
An Overview of Genetic Engineering
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2023
Genetic engineering – the process of purposefully altering an organism’s DNA – has been used to create powerful research tools and model organisms, and has also seen many agricultural applications. However, in order to engineer traits to tackle complex agricultural problems such as stress tolerance, or to realize the promise of gene therapy for treating human diseases, further advances in the field are still needed. Important considerations include the safe and efficient delivery of genetic...
FAQs
Engineers represent electrical systems with quantitative models that relate voltage, current, charge, and electromagnetic fields. These models help determine how energy and information move through components and systems under specified conditions. Applying circuit laws allows designers to predict responses before construction, identify relationships among variables, and evaluate whether a system will produce the intended physical output.
Semiconductor behavior provides a way to control how electrical systems process signals and energy. In electrical engineering, semiconductor principles connect physical material behavior with the operation of electronics and computing hardware. Understanding this connection helps engineers analyze how electrical inputs can be modified into useful outputs, supporting technologies that require controlled processing, sensing, or information handling.
Signal processing focuses on handling electrical representations of information, while control principles focus on regulating system behavior. Together, they allow engineers to interpret inputs, determine how a system should respond, and adjust operation toward a desired outcome. This distinction is important in automation and instrumentation, where useful performance depends on both information handling and system regulation.
A typical analysis begins by identifying the physical inputs, desired outputs, and relevant electrical variables. Engineers then model the system, apply circuit laws and appropriate principles for semiconductors, signals, or control, and use the resulting relationships to predict behavior. Comparing those predictions with the intended function helps guide design decisions and refine the system before practical use.
Electrical engineering principles support a broad range of systems, including power grids, electric machines, communication systems, sensors, medical instrumentation, and computing hardware. These applications differ in purpose, but each connects measurable electrical behavior with a useful function. The same analytical foundation can therefore address energy delivery, information transfer, physical measurement, computation, or interaction with biological systems.
Physics supplies the laws and measurable quantities used to understand electrical systems, while electrical engineering applies that knowledge to designed technologies. Modeling fields, charge, voltage, and current links fundamental behavior to devices and infrastructure. This connection enables applications such as energy efficiency, automation, medical measurement, and emerging technologies that interact with the physical world.