Ads
related to: 12 volt variable resistorzoro.com has been visited by 100K+ users in the past month
A+ Rated - Better Business Bureau (BBB)
Search results
Results from the WOW.Com Content Network
A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages , bias active elements, and terminate transmission lines , among other uses.
For example, if a 300-ohm resistor is attached across the terminals of a 12-volt battery, then a current of 12 / 300 = 0.04 amperes flows through that resistor. The ohm (symbol: Ω) is the SI unit of electrical resistance, named after Georg Simon Ohm. An ohm is equivalent to a volt per ampere.
The word rheostat was coined in 1843 by Sir Charles Wheatstone, [7] from the Greek ῥέος rheos meaning "stream", and - στάτης-states (from ἱστάναι histanai, "to set, to cause to stand") meaning "setter, regulating device", [8] [9] [10] which is a two-terminal variable resistor. For low-power applications (less than about 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] It has a nonlinear, non-ohmic current–voltage characteristic that is similar to that of a diode. Unlike a diode however, it has the same characteristic for both directions of ...
The output voltage is about 2.5 volts with a gate-to-source voltage of −1 volt. Conversely, the output voltage drops to about 1.6 volts when the gate-to-source voltage is 0 volts. With a 4-volt input signal and R 1 of 300 ohms, the range of resistance for the JFET VCR can be calculated from the simulation results as V GS varies between −1 ...
It is constructed from four resistors, two of known values R 1 and R 3 (see diagram), one whose resistance is to be determined R x, and one which is variable and calibrated R 2. Two opposite vertices are connected to a source of electric current, such as a battery, and a galvanometer is connected across the other two vertices. The variable ...
Ads
related to: 12 volt variable resistorzoro.com has been visited by 100K+ users in the past month
A+ Rated - Better Business Bureau (BBB)