Question

we have learned that the current in an RL circuit behaves according to the equation: I(t)= V/R(1-e^-t/τ)

^{where τ= L/R is the characteristic time of the circuit.}

^{a) According to the equation, what is the maximum current that can flow in an RL circuit? Your answer shou;d be in the form of a formula, not a number. make sure to explain, either mathematically or in words, why your answer is what it is.}

^{b) In a given circuit, after 58 milliseconds have passed, the current has reached 60% of its maximum value. Use the current equation to find the value of the characteristic time of this circuit?}

c) If this circuit has a resistance of 125 ohm, what is the inductance?

thank you.

Answer 1