what is resistor?
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What is a resistor? A resistor is a passive electrical component with the primary function to limit the flow of electric current. The resistor is a passive electrical component to create resistance in the flow of electric current. In almost all electrical networks and electronic circuits they can be found.
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- Resistor is an electrical component that reduces the electric current. The resistor's ability to reduce the current is called resistance and is measured in units of ohms (symbol: ω). If we make an analogy to water flow through pipes, the resistor is a thin pipe that reduces the water flow.
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electrical device resistor, resistance-an electrical device that resists the flow of electrical current. resonant circuit, resonator-an electrical circuit that combines capacitance and inductance in such a way that a periodic electric oscillation will reach maximum amplitude.
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Game of Thrones: Everything We Know About White Walkers Game of Thrones' fifth season kicks off on April 12th and since the looming threat of the White Walkers will be a big part of the upcoming episodes, we thought we'd do a rundown regarding everything we know about the bastards.
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Fixed resistor Fixed resistor definition A resistor having a fixed, defined electrical resistance which is not adjustable. In an ideal world a perfect resistor would have a constant ohmic resistance under all circumstances.
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resistor A resistor is an electrical component that limits or regulates the flow of electrical current in an electronic circuit. Resistors can also be used to provide a specific voltage for an active device such as a transistor. All other factors being equal, in a direct-current (DC) circuit, the current through a resistor is inversely proportional to its resistance, and directly proportional to the voltage across it. This is the well-known Ohm's Law.
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What is a resistor? The resistance is measured in ohms. An ohm is the resistance that occurs when a current of one ampere passes through a resistor with a one volt drop across its terminals. The current is proportional to the voltage across the terminal ends.
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- A varistor is a voltage dependent resistor (VDR). The resistance of a varistor is variable and depends on the voltage applied.
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- How to Identify Resistors. Two Methods:Color Coded Resistors (Axial Resistors)Alphanumerically Coded Resistors (Surface Mounted Resistors)Community Q&A. Resistors are very common components in electronic circuits of all kinds. Their function is to resist the current flowing in the circuit, and how much resistance they provide is measured in ohms.
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The Crossover - Brain of your Loudspeaker System Resistors do not change the phase of the signal, the time relationship between voltage (electrical pressure) and current (flow of electrons). They only consume power and convert it to heat. That is all they do. In a perfect speaker system there is no need for resistors at all.
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General Electronics Resistance is the amount of opposition to electrical current. This can be likened to the diameter of a pipe resisting the flow of drainage from the bathtub. The larger the pipe (lower resistance) the faster gravity can pull the water out of the bathtub.
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Resistors That's why we define resistance more precisely as the voltage in volts required to make a current of 1 amp flow through a circuit. If it takes 500 volts to make 1 amp flow, the resistance is 500 ohms (written 500 ω).
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RHEOSTAT rheostat - resistor for regulating current. variable resistor. dimmer - a rheostat that varies the current through an electric light in order to control the level of illumination. resistor, resistance - an electrical device that resists the flow of electrical current. contact arm, wiper arm, wiper - contact consisting of a conducting arm that rotates over a series of fixed contacts and comes to rest on an outlet.
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Ohmmeter Ohmmeter, instrument for measuring electrical resistance, which is expressed in ohms. In the simplest ohmmeters, the resistance to be measured may be connected to the instrument in parallel or in series. If in parallel (parallel ohmmeter), the instrument will draw more current as resistance increases. If in series (series ohmmeter), current will decrease as resistance rises.
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resistor resistor-Computer Definition. An element within a circuit that is specifically designed to restrict the flow of electric current when a potential difference occurs across it. See also circuit and current. An electronic component that resists the flow of current in an electronic circuit. Resistors are often made out of chunks of carbon or thin films of carbon or other resistive materials. They can also be made of wires wound around a cylinder.
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- Definition. A blower motor resistor, typically located beneath the passenger side dashboard, contains three resistors, or sets of terminals designed to generate voltage in proportion to electrical current.These resistors allow the blower motor to function at lower speeds.f the blower motor resistor fails, the blower motor only functions at its highest speed and cannot decelerate. Replacing the blower motor resistor typically corrects this problem.
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What is Resistor The resistor's ability to reduce the current is called resistance and is measured in units of ohms (symbol: ω). If we make an analogy to water flow through pipes, the resistor is a thin pipe that reduces the water flow.
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Photoresistor Not to be confused with Photoresist. A photoresistor (or light-dependent resistor, LDR, or photocell) is a light-controlled variable resistor. The resistance of a photoresistor decreases with increasing incident light intensity; in other words, it exhibits photoconductivity.
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bias resistor bias resistor. (electronics). A resistor used in the cathode or grid circuit of an electron tube to provide a voltage drop that serves as the bias. 1  Facebook.
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Resistor High-power resistors that can dissipate many watts of electrical power as heat may be used as part of motor controls, in power distribution systems, or as test loads for generators. Fixed resistors have resistances that only change slightly with temperature, time or operating voltage. Variable resistors can be used to adjust circuit elements (such as a volume control or a lamp dimmer), or as sensing devices for heat, light, humidity, force, or chemical activity.
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Resistors The power rating of a resistor is one of the more hidden values. Nevertheless it can be important, and it’s a topic that’ll come up when selecting a resistor type. Power is the rate at which energy is transformed into something else.
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What Is the Function of an LDR? What is the function of a resistor in a circuit? A: A resistor is an electrical component that restricts current flow in a circuit. The unit by which an object's capacity to resist current flow is measured i... Full Answer >
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The role of resistors in electrical circuits When used in parallel, resistors can be said to be a “current dividing network.” This is because in a parallel circuit, voltage across each resistor is the same value but the current flowing through each resistor only part of the total circuit current value.
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Resistors REVIEW: 1  Devices called resistors are built to provide precise amounts of resistance in electric circuits. Resistors are rated both in terms of their resistance (ohms) and their ability to dissipate heat energy (watts).
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Rheostat Rheostat, adjustable resistor used in applications that require the adjustment of current or the varying of resistance in an electric circuit. The rheostat can adjust generator characteristics, dim lights, and start or control the speed of motors. Its resistance element can be a metal wire or ribbon, carbon, or a conducting liquid, depending on the application.
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resistor Use resistor in a sentence. Show more usage examples... Michael's science project taught him that metal is a good conductor of electricity, allowing it to flow along a circuit, but plastic is a resistor and will stop the current.