Resistors Are Used For

A resistor is a passive two terminal electrical component that implements electrical resistance as a circuit element. An important function is when a resistor is used as a heating element as in the case of irons toasters heaters electric stoves and hair dryers.

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The three most popular are limiting current.

Resistors are used for. By introducing resistance into a circuit resistors can limit the amount of current that flows through the circuit. Their values are determined during the design phase of the circuit. Resistors also produce light as filaments in light bulbs.

They are used in electronics circuits to set the right conditions in a circuit. Some types of resistors are variable letting you set their resistance by sliding a slider or turning a knob. Resistors are basically used for controlling voltage and current in a circuit which becomes highly crucial for operating the various active sophisticated components.

For example a bjt such as a bc547 or similar may need a properly calculated resistor across its baseemitter in order to function optimally and safely. This way you can find the right resistor for led. Resistors are among the most popular electronic components around because theyre simple yet versatile.

This simple circuit might be used as a power on indicator for a dvd player or a computer monitor. 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. Another use of resistors is in voltage divider circuits which are circuits which divide voltage so that different parts of circuits receive different voltage values as is needed proportional to the value of resistances of the resistors in series.

Resistors are also used to filter incoming signals when used with capacitors. However resistors can also be used to control the amount of voltage provided to part of a circuit and to. Varying resistance changes the amount of current flowing in a circuit.

Resistors are used for many reasons in electronic circuits. Variable ones may function as sensors switches or voltage dividers. You can for example use a variable resistor to control the loudness of an amplifier the pitch of a musical tone or the speed of a motor.

Fixed resistors are by far the most widely used type of resistor. One of the most common uses of a resistor is to limit the amount of current in part of a circuit. Leds are also available in an integrated package with the correct resistor for led operation.

Filters are used widely in many electronic circuits where it will allow signal of certain frequency and attenuates the undesired frequencies. Resistors are used in voltage divider circuits. In accordance with ohms law if the voltage in a circuit remains the same.

These different resistor types are used for different applications.

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