Electrical Devices
Electrical Devices - Related Videos
08:29
Thermal Measurement Techniques in Analytical Microfluidic Devices
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Cited by 6 •
2015
Here, we present three protocols for thermal measurements in microfluidic devices.
04:53
Electrical Safety
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2023
Robert M. Rioux & Suprita Jharimune, Pennsylvania State University, University Park, PA Among the many hazards present in the laboratory, electrical hazards are one of the most common we must be cognizant of since most of the laboratory equipment we use requires electricity for operation. Improper handling or operation of electrical devices might lead to electric shock with the potential risk of injury or even death. Electric sparks can lead to fire or explosion (since many flammable...
10:35
Designing Microfluidic Devices for Studying Cellular Responses Under Single or Coexisting Chemical/Electrical/Shear Stress Stimuli
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Cited by 4 •
2016
Micro-fabricated devices integrated with fluidic components provide an in vitro platform for cell studies mimicking the in vivo micro-environment. We developed polymethylmethacrylate-based microfluidic chips for studying cellular responses under single or coexisting chemical/electrical/shear stress stimuli.
13:29
Electric and Magnetic Field Devices for Stimulation of Biological Tissues
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2021
This protocol describes the step-by-step process to build both electrical and magnetic stimulators used to stimulate biological tissues. The protocol includes a guideline to simulate computationally electric and magnetic fields and manufacture of stimulator devices.
10:23
Electric Fields
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2023
Source: Yong P. Chen, PhD, Department of Physics & Astronomy, College of Science, Purdue University, West Lafayette, IN An electric field is generated by a charged object (referred to as the source charge) in the space around it, and represents the ability to exert electric force on another charged object (referred to as the test charge). Represented by a vector at any given point in the space, the electric field is the electrical force per unit test charge placed at that point (the force...
FAQs
Voltage provides the electrical potential associated with charge movement, while current describes charge flow through a device. Resistance influences that flow, so Ohm’s law helps relate these quantities when analyzing circuit behavior. Power dissipation indicates how electrical energy is transferred, making it important for evaluating device performance and supporting safer circuit design.
These components shape circuit behavior in complementary ways. Conductors provide paths for charge, resistors influence energy transfer, capacitors affect signal behavior and circuit response, diodes contribute control within the circuit, and switches regulate circuit operation. Considering their functions together explains how a complete system directs charge and manages signals rather than treating components as isolated parts.
Electric fields connect the behavior of charge with measurable electrical quantities such as voltage and current. Studying this connection helps explain how fundamental physical principles appear in practical circuits and how components influence energy transfer and signal response. It also links device analysis to broader physics concepts instead of limiting investigation to observed outputs.
Performance depends on the relationships among voltage, current, resistance, component selection, and circuit response. Changing these conditions can alter energy transfer, signal behavior, and power dissipation. Analysis therefore considers both individual components and their interactions, allowing researchers to evaluate how effectively a device performs its intended function and identify opportunities for safer or more efficient operation.
A basic investigation starts by identifying the device’s components and intended function, then arranging them into a circuit for observation. Researchers examine relevant voltage, current, signal, or response behavior through measurement and compare the results with principles such as Ohm’s law and power dissipation. This workflow connects practical observations with physics-based circuit analysis.
Their applications extend from simple laboratory circuits and sensors to computers, communication systems, medical instruments, and renewable-energy technologies. The appropriate device or circuit depends on whether the system must control charge, transfer energy, process signals, or support measurement. This broad range makes electrical devices relevant across both experimental physics and everyday technological systems.
Studying these systems applies electric charge, voltage, current, electric fields, and power dissipation to practical design problems. Performance analysis can reveal how circuits respond, how energy is transferred, and where improvements are needed. In turn, this knowledge supports safer, more efficient, and increasingly intelligent technologies, including devices used in communication, medicine, computing, and renewable energy.