Question 1 of 10
In a DC R-L circuit at steady state, how does the inductor behave?
At steady state in a DC circuit, the inductor acts as a short circuit.
Question 2 of 10
During the transient period of a DC R-L circuit, what is the initial current through the inductor?
At t=0+, the inductor initially acts as an open circuit, and current is zero.
Question 3 of 10
What is the unit of the time constant in an R-L circuit?
The time constant is measured in seconds.
Question 4 of 10
How is the time constant of an R-L circuit calculated?
The time constant is calculated as L/R.
Question 5 of 10
In an AC R-L circuit, what causes the current to lag behind the voltage?
The inductor causes the current to lag behind the voltage in an AC circuit.
Question 6 of 10
What is the formula for inductive reactance (XL)?
Inductive reactance is calculated as 2?fL, where f is frequency and L is inductance.
Question 7 of 10
How does increasing the inductance (L) affect the current lag in an AC R-L circuit?
Increasing the inductance increases the phase lag of the current.
Question 8 of 10
What is the initial behavior of an inductor in an AC R-L circuit?
Initially, the inductor opposes the change in current and effectively acts as an open circuit.
Question 9 of 10
What happens to the energy stored in an inductor?
Energy is stored in the magnetic field created by the inductor.
Question 10 of 10
In an R-L circuit with a DC supply, what is the inductor's voltage at steady state?
At steady state, the inductor acts as a short circuit, and the voltage across it is zero.
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