answersLogoWhite

0

A variable resistor means that the resistance can be varied, usually by using a slide. A fixed resistor can not be varied.

User Avatar

Wiki User

8y ago

What else can I help you with?

Continue Learning about Engineering

How do you bias a 2N5777 photo-transistor?

connect the base of the transistor to a variable resistor and to a normal resistor


What is the function of a variable resister in an electrical circuit?

A variable resistor usually has three terminals, one of which is connected to the 'wiper' by which means its resistance is measured. By using all three terminals, we can control the potential difference in a circuit. When used in this way, we call the variable resistor a 'potentiometer'. By using two of the three terminals, one of which must be connected to the variable wiper, we can control the current passing through circuit. When used in this way, we call the variable resistor a 'rheostat'.


What is the name used for a high power variable resistor?

Rheostat


How to calculate the resistance to step down DC voltage?

Connect a variable resistance across DC source (fixed ends of variable resistor or Rheostat) and take decreased DC output across its one fixed terminal and other variable terminal of variable resistor. Other method is connect variable resistor in series with DC output and load, vary the resistance and take decreased DC voltage as required.


Why are fixed resisters used in many circuts?

Hi, where there is no need of changing the value of resistor then why do you place variable resistor instead a fixed resistor. After all the selection of resistor depends on the cause of use in application. by the way wide range of resistor values are avilable in the market. if the application requires tuning operation then variable resistor is need to be mounted. nothing is mandatory unless the application requires. Regards, Manjunath A.V

Related Questions

How do you bias a 2N5777 photo-transistor?

connect the base of the transistor to a variable resistor and to a normal resistor


How do you bias a 2N5777 photo transistor?

connect the base of the transistor to a variable resistor and to a normal resistor


How do you test a variable resistor?

how do test a variable resistor


What are the different types of biasing technique for amplifier?

Base resistor method (or) Fixed bias methodBiasing with feedback resistor (or) Collector to base bias methodVoltage divider bias (or) Self bias


Where is a variable resistor in your home?

If you have a light switch where you can brightener it or dim it that is a VARIABLE RESISTOR.


Is Light dependent resistor an example of resistor?

yes, a variable resistor


Function of a variable resistor?

Variable resistor is an resistor that can change its resistance manually, by rotating a handle or a screw.


What is the difference between a fixed resistor and a variable resistor?

its the colour of the fixed and the variable we define it by its power and name


What is a variable resister?

The volume knob on an audio device (radio, TV) is an example of a variable resistor. A variable resistor is also known as a potentiometer.


What is variable resistance?

The volume knob on an audio device (radio, TV) is an example of a variable resistor. A variable resistor is also known as a potentiometer.


What is a resistor whose value can varied over a range of value called?

Variable resistor. The value of the variable resistor can be changed at any given moment.


What does a variable resistor diagram illustrate?

A variable resistor diagram illustrates how a resistor can change its resistance value, allowing for adjustable control of electrical current in a circuit.