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# What is the difference between resistance box rheostat and resistor?

Updated: 9/25/2023

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Q: What is the difference between resistance box rheostat and resistor?
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### Difference between variable resistor and rheostat?

The difference between a variable resistor and a rheostat is the same as the difference between six and half a dozen.

### What is the difference between an ohmic resistor and a non-ohmic resistor?

A non-ohmic resistor doesn't have a constant resistance. A ohmic resistor has a constant resistance.

### When to use a rheostat?

Depending on the situation. The purpose of the rheostat is use to change the resistance of the circuit. The rheostat is use to define Ohm Laws the 2nd situation is use to find out what the fixed resistor's resistance. 3rd purpose : used to control the resistance of circuit. eg Radio

### What is the difference between resistance and insulation?

Resistor is a current a insulator is a not conductive and conductors can conduct.

### What re the difference between slide-wire rheostat carbon rheostat and resistance box.?

Slide wire rheostat: We can get continuous variation in resistance. It is used in such situations where we are supposed to get a fixed current flowing throug the circuit-some integral value like 1,2 etc instead of 1.343 and all. Resistance box: It is a deveice used to get a specific value of resistance. We may not get a simple value for current.

### What is the difference between a variac and a rheostat?

These devices could, in theory, be interchangeable. Variac is a (typically single coiled) variable transformer, whereas rheostat is a variable resistor. Although they may look just the same, they differ in one aspect - wire resistance. It should be as low as possible for variac, but it can differ on rheostats. So-you can use wire rheostat as a low efficiency variac and you can use wire variac as ridiculously huge rheostat, resistive range of which serves no practical purpose.

### What is the difference between resistance box and rheostat?

Resistance box will provide resistance of discrete values such as 1, 2, 3 ohms or 0.1,0.2, 0.3 ohms. So interim values are not possible. But rheostat gives a chance to vary the resistance continuously. It may be 5 ohm or even 5.769 ohm. So just to fix current for a specified value such 1.5 ampere resistance box will not be suitable where as a rheostat is the most suitable.

### Difference between variable and fixed resistor?

Variable resistors means that a resistor which can change its resistance by control by any person or it self and fixed resistor means that it can not change its value.

### How can a potentiometer be a rheostat?

A rheostat and a potentiometer are two different applications for the same device, a variable resistor. These devices have three terminals. Two terminals are connected across the complete resistor, while the third terminal is connected to a controllable wiper. The variable resistance is provided between the wiper terminal and either one of the other two terminals.When used to control current, it is called a rheostat. When used to control voltage, it is called a potentiometer.

### Why is there no flow of electric current between 2 objects of equal resistance?

I am not sure how the two objects of equal resistance are supposed to be connected. But for a current to flow, for example across a resistor, there must be a voltage difference between the terminals of this resistor.

### What is a resistor that can be adjusted between minimum and maximum by turning a dial is called a what?

It is a variable resistor. Basically, the same as when you turn up or down the heat on an electrical oven or radio.

### What is the difference between normal resistance and potentiometer?

Resistors are either fixed value, or variable. A variable resistor has three terminals; one at either end and one attached to a moving 'wiper', and can be connected either as a potentiometer or as a rheostat. So 'potentiometers' and a 'rheostats' are different applications for variable resistors. A potentiometer uses all three terminals, and is used to control levels of potential; whereas a rheostat uses just two of the three terminals, and is used to control current.