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In theory, a rheostat has only resistance. It lacks any capactive or inductive properties, and, therefore, has no reactance. In practice, a rheostat, which is like a potentiometer without a "third" terminal. One of the ends (terminals) of a potentiometer, if it is removed entirelym will leave a two-terminal device called a rheostat, or variable resistor.
In practice, all similar devices have some distributed capacitance and inductance associated with them. The construction of the device as well as the materials out of which it is made (as well as the operating frequency) will determine how much reactance the device has.
What else can I help you with?
How do you Test a rheostat?
how to test a rheostat?
What is the unit of inductive reactance?
Inductive reactance, as well as capacitive reactance, is measured in ohms.
What does capacitive reactance oppose?
Inductive reactance.
What is another name for a rheostat?
A variable resistor is another name for a rheostat.
Where does lost energy in a rheostat go?
It is lost in heating the resistive material of the rheostat.
What is the Quantity Symbol for Reactance?
The quantity symbol for reactance is X.
What is the inverse of reactance?
The reciprocal of reactance is susceptance, expressed in siemens.
What are the letters for Inductive Reactance?
The symbol for inductive reactance is XL.
What is the hypothesis of a rheostat?
The hypothesis of a rheostat is that by changing the resistance in a circuit using the rheostat, the current flowing through the circuit can be varied, thus regulating the output of the circuit.
How do you install a rheostat in 1999 626 Mazda?
How do you install a rheostat in 1999 626 Mazda?
How does doubling the frequency effect the reactance of an inducter and capacitor?
for inductor, reactance XL = 2*pi* f *L, if frequency doubles then reactance increase. But for capacitor, reactance Xc = 1/(2*pi*f*C). In this case if frequency doubles the reactance decrease.
What is synchronous reactance in alternator?
The overall reactance of the armature winding is the sum of its leakage reactance plus fictitious reactance, which is known as synchronous reactance (Xs).Xs=XL+Xarwhere XL and Xar are in Ω/phase. Therefore, Xs is in Ω/phase.The impedance of armature winding is obtained by combining its resistance and its synchronous reactance.
