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The Effect of Magnetic Field on Negative Resistivity to Positive Resistance

The Effect of Magnetic Field on Negative Resistivity to Positive Resistance

In a paper appearing in Natures Scientific Reports, Dr. Ramesh Mani, professor of physics and astronomy at Georgia State University, reports that, in the presence of a magnetic field, negative resistivity can produce a positive resistance, along with a sign reversal in the Hall effect, in GaAs/AlGaAs semiconductor devices. The electrical resistance is a basic property of components known as resistors that occur in electrical circuits. Manufactures like Microhm Electronics are providing high quality resistors with various resi...

Date:2019-12-17      [More+]
How to Select Proper Free Air Wattage for Resistors?

How to Select Proper Free Air Wattage for Resistors?

In order to choose the most suitable resistor meeting the requirements of the application the user would need to allow for the differences between the actual service conditions and the Free Air Watt Rating. It is a general engineering practice to operate resistors at more than or less than the nominal rating. Microhm Electronics engineers provide professional suggestions for your applications. The most accurate method of determining or checking the rating is to measure the temperature rise in a trial installation. This more a...

Date:2019-12-16      [More+]
Compound Chromium Oxide Creating New High-Value, Compact Nanoscale Resistors

Compound Chromium Oxide Creating New High-Value, Compact Nanoscale Resistors

Researchers from the London Centre for Nanotechnology have made new compact, high-value resistors for nanoscale quantum circuits. The resistors could speed the development of quantum devices for computing and fundamental physics research. The researchers describe the thin-film resistors in an article in the Journal of Applied Physics. Different from this chromium oxide nanoscale resistors, Microhm Electronics as the same as other manufactures produce a numerous of thin fim resistosrs, such as NAP series, NLR100, NLR50 and mor...

Date:2019-12-13      [More+]
Chip Resistor Market Size 2019 and Forecast Period 2019 – 2025

Chip Resistor Market Size 2019 and Forecast Period 2019 – 2025

Thin film resistors account for a majority of the chip resistor market share. The increasing demand for compact size and high resistance power resistor for improving performance at low cost is accelerating the demand for these devices. Thin film resistors, like Microhm Electronics NAP series and NR series, offer lower tolerances, noise, parasitic inductance, and resistor temperature coefficients and provide stability at much higher frequencies compared to thick film resistors. Moreover, due to their highly resistive material...

Date:2019-12-05      [More+]
Inductive  and Non-Inductive Resistors

Inductive and Non-Inductive Resistors

The induction of a resistor is a very important item to keep in mind when building a circuit, especially if you are dealing with switching or high frequency circuits. The construction of most resistors are very similar to that of an inductor. They take a specific length of wire or film, determined by the resistance value they are trying to achieve, and wrap it around a core made of ceramic, plastic, fiberglass, or another non-conductive material. A non-inductive resistor is wound one way then again in the other direction. Thi...

Date:2019-12-03      [More+]
High Pulse Energy Resistors Designed for Electric Vehicles

High Pulse Energy Resistors Designed for Electric Vehicles

The EV industry uses high-power resistors in a variety of applications including power converters for charging systems, power control unit, power distribution unit (PDU), and motor control unit and battery modules. Microhm Electronics resistors focuses on the cutting edge development of resistor technology. We work hand-in-hand with engineers to solve problems related to pre-charge, discharge and other applications for EV. From systems and long-term production experience, Microhm Electronics offers a wide range of eDrive tec...

Date:2019-11-27      [More+]
Microhm Electronics' DC Shunt Resistor

Microhm Electronics' DC Shunt Resistor

Current shunt resistors are low resistance precision resistors used to measure AC or DC electrical currents by the voltage drop those currents create across the resistance. For example. A current shunt whose resistance is 0.001 Ohms having a current of 50 Amps flowing through it will produce a voltage of 0.001 50 = 0.05 Volts or 50 mV (milliVolts). So by inserting a current shunt into a circuit whose current you want to measure your can find the current by measuring the voltage drop across the shunt. Then knowing the resista...

Date:2019-11-27      [More+]
Resistors, Capacitors and Inductors in Contemporary Art

Resistors, Capacitors and Inductors in Contemporary Art

Resistors, capacitors, inductors or other passive components are not only making its function in electrical circuits, but they are also nice looking elements that inspire artists to some extend. Barry Aces beaded bandolier bags bridge the past, present, and technological future. At first glance, Barry Aces artwork look like typical intricately crafted woodland-style beadwork but a closer examination will reveal more than what first meets the eye. Rather than using glass beads, the Odawa Anishinaabe visual artists work is ador...

Date:2019-11-20      [More+]
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