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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 else can I help you with?
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 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.
What is the difference between resistance box rheostat and resistor?
A resistance box is a device that contains a set of fixed resistors that can be connected in various combinations to achieve different resistance values. A rheostat is a variable resistor that can be adjusted to change the resistance in a circuit. A resistor is a general term for a component that resists the flow of electrical current in a circuit and comes in fixed resistance values.
What is the function of a carbon pile rheostat in an electrical circuit?
A carbon pile rheostat is used to control the amount of electrical current flowing through a circuit by varying the resistance. It works by adjusting the amount of contact between carbon discs, which changes the resistance and therefore the current flow.
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 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 a potentiometer and a rheostat?
The fundamental difference between a potentiometer (pot) and a rheostat is that the former is a three terminal device, while the latter is a two terminal one. Let's look at both. When we consider either device, we are looking at a resistive element with a "wiper" or "adjustable contact" to which we can attach a wire. The only difference between the two devices is that the resistive element can have an electrical contact (terminal) at both ends or at just one end. The pot has terminals at each end of the resistive element, and the rheostat has a terminal at only one end. Lastly, a pot can be used in place of a rheostat, but not the other way around. Use the links to check facts and lock in the ideas.
What is the variable terminal of a rheostat?
The variable terminal of a rheostat is one of the connection points that allows for the adjustment of resistance within the circuit. By moving the wiper or slider along the resistive element, the user can change the resistance between the variable terminal and either of the fixed terminals, thus controlling the current flow. This adjustability makes rheostats useful for applications such as dimming lights or controlling motor speeds.
What is the difference between on and off state resistance?
On Circuit Resistance = Close to the total load Resistance. Off Circuit Resistance = Near Infinitive High Resistance.
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.
What is difference between corrosion resistance and oxidation resistance?
corrosion resistance is resistant against chemicals oxidation resisstance is restant against oxigen
What is the role of voltmeter?
vary the rheostat by step by step note out the two voltmeter readings
