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A resistor in a circuit can be made from various materials, including carbon, metal film, or wire-wound materials, which resist the flow of electric current. Additionally, non-linear components like diodes can also serve as resistors in specific applications, such as in variable resistors or potentiometers. In some cases, even certain types of semiconductor devices can act as resistive elements. The choice of resistor depends on the desired resistance value, power rating, and stability in the circuit.
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A can be used to reduce the current in a circuit?
A resistor.
What is need of capacitor and resistor in circuit?
because without using capacitor or resistor in a circuit,it cant be complete.Resistor is used to protect the circuit by giving a certain amount of voltage.Capacitor is used to charge and discharge purpose.
What device could not provide the energy for current to flow in a circuit?
a resistor
The dimmer switch in a lighting circuit controls the brightness of one or more lamps by varying the resistance in the circuit what schematic symbol could be used to represent this device?
Use the standard resistor symbol and then place an arrow across the resistor. The bottom of the arrow midpoint of the resistor and just below, the tip of the arrow (draw with an arrow head) just above the resistor. This represents the wiper of the variable resistor.
What componnet can you remove and the circuit will still be working?
In many circuits, a resistor can often be removed while still allowing the circuit to function, depending on its role. For example, if the resistor is used for current limiting in a non-critical part of the circuit, removing it may not prevent the circuit from operating, though it could affect performance or safety. However, it's essential to consider the specific design and purpose of the circuit, as removing other components could lead to failure. Always consult the circuit diagram and specifications before making changes.
A can be used to reduce the current in a circuit?
A resistor.
What does the variable resistor do in a circuit?
It is used to vary the voltage/current flow in a circuit.
What can be used to reduce the current a circuit?
A resistor.
What does a resistor do in an ampliflyer circuit?
what does a resistor in an ampliflyer circuit
What is need of capacitor and resistor in circuit?
because without using capacitor or resistor in a circuit,it cant be complete.Resistor is used to protect the circuit by giving a certain amount of voltage.Capacitor is used to charge and discharge purpose.
What is a function of a resistor in a fire alarm circuit?
A resistor in a sensor circuit is used as a simple way to monitor the function of the circuit. The resistor has a calibrated and known voltage drop and current while the circuit is "normal". If there is a short-circuit, or an open-circuit, the voltage and current will change and trigger the trouble alarm.
What does a pre-set resistor do in a circuit?
A preset resistor is used in some circuits to change the resistance. The preset resistor enables the circuit to be more or less sensitive thereby altering the resistance.
What device could not provide the energy for current to flow in a circuit?
a resistor
What do you call a variable resistor that is set up to alter the size of the current in a circuit?
A thermister is a device that changes resistance depending on temperature. A photo resistor changes resistance based on light. Both of these could be used with an amplifying circuit to vary current flow.
The dimmer switch in a lighting circuit controls the brightness of one or more lamps by varying the resistance in the circuit what schematic symbol could be used to represent this device?
Use the standard resistor symbol and then place an arrow across the resistor. The bottom of the arrow midpoint of the resistor and just below, the tip of the arrow (draw with an arrow head) just above the resistor. This represents the wiper of the variable resistor.
Why resistor should disconnected from the circuit when measured the value of resistor?
if not disconnected you will measure the resistance of the circuit in parallel with the resistor.
A component used to protect an led in a circuit?
you could use a current limiting diode such as a Zenner, or a current limiting resistor in series with the LED
