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A resistance decade box or resistor substitution box is a unit containing resistors of many values, with one or more mechanical switches which allow any one of various discrete resistances offered by the box to be dialed in. Usually the resistance is accurate to high precision, ranging from laboratory/calibration grade accuracy of 20 parts per ...
Universal had a number of industry "firsts", including such products as the "Dynamic Variable Resistance" technology that varied the resistance applied to muscle groups by an exercise machine throughout the entire range of motion. However, from the 1980s onward, Universal faced increasing competition from Nautilus and other rivals.
Metal-oxide varistor manufactured by Siemens & Halske AG. Modern varistor schematic symbol, which is the same as a thermistor symbol [1]. A varistor (a.k.a. voltage-dependent resistor (VDR)) is a surge protecting electronic component with an electrical resistance that varies with the applied voltage. [2]
Contact resistance values are typically small (in the microohm to milliohm range). Contact resistance can cause significant voltage drops and heating in circuits with high current. Because contact resistance adds to the intrinsic resistance of the conductors, it can cause significant measurement errors when exact resistance values are needed.
Spreading resistance profiling (SRP), also known as spreading resistance analysis (SRA), is a technique used to analyze resistivity versus depth in semiconductors. Semiconductor devices depend on the distribution of carriers ( electrons or holes ) within their structures to provide the desired performance.
Sri Lanka's cabinet approved issuing free tourist visas to visitors from 35 countries including China, India and Russia, a top official said on Thursday, in an effort to boost tourism and help ...
Sri Lanka Podujana Peramuna: 22 November 2019: Gotabaya Rajapaksa: Minister of Power and Energy [47] Dullas Alahapperuma: Sri Lanka Podujana Peramuna: 12 August 2020: Minister of Power [48] Gamini Lokuge: Sri Lanka Podujana Peramuna: 16 August 2021: Minister of Power [49] Pavithra Devi Wanniarachchi: Sri Lanka Podujana Peramuna: 3 March 2022 ...
Using the above equation, at V GS = −1 V, the VCR resistance is about 500 ohms, and at V GD = 0 V, the VCR resistance is about 200 ohms. Applying a ramp voltage to the input of a similar VCR circuit (the load resistor has been changed to 3000 ohms) allows one to determine the exact value of the resistance of the JFET as the input voltage is ...