Outright understanding L/R inductor time constant

In summary, the external constant E potential (voltage) applied to a LR circuit being charged affects the time constant of the inductor, with a larger R resulting in a shorter charge time. However, the voltage itself does not determine the charge time, as it is balanced by the current and final current. This is proven by the (DE) equation.
  • #1
abdulbadii
43
1
TL;DR Summary
Scientifically understanding L/R inductor time constant r reciprocates it
How is the real understanding, when an external constant E potential (voltage) is imposed/applied on a LR circuit, that is being charged as the characteristic L/R inductor time constant: the greater R the shorter time inductor get (full) charged

This absolutely independent to the E; it could simply be so great while time constant (charge time) still being shorter time than that of far less E, as proven or inspected by the (DE) equation
 
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  • #2
abdulbadii said:
Summary: Scientifically understanding L/R inductor time constant r reciprocates it

as proven or inspected by the (DE) equation
yes.
 
  • #3
A larger voltage means that the current increases faster, but it also means that the final current is larger. The two effects balance out so the time required is independent of the voltage.
 

FAQ: Outright understanding L/R inductor time constant

What is an L/R inductor time constant?

An L/R inductor time constant is a measure of the time it takes for the current in an inductor to reach a certain percentage of its maximum value when a voltage is applied. It is determined by the value of the inductance (L) and the resistance (R) in the circuit.

How is the L/R inductor time constant calculated?

The L/R inductor time constant can be calculated by dividing the inductance (L) by the resistance (R). The resulting value is measured in seconds.

What is the significance of the L/R inductor time constant?

The L/R inductor time constant is important because it determines the rate at which an inductor responds to changes in voltage. It is also used to calculate the energy stored in an inductor and the amount of time it takes for the inductor to discharge.

How does the L/R inductor time constant affect circuit behavior?

The L/R inductor time constant affects the behavior of a circuit by determining the speed at which the current in an inductor changes. A larger time constant means a slower response, while a smaller time constant means a faster response.

What factors can affect the L/R inductor time constant?

The L/R inductor time constant can be affected by the value of the inductance and resistance in the circuit, as well as the type of material used in the inductor and the frequency of the applied voltage. Temperature and other external factors can also impact the time constant.

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