Rl Circuit Voltage Graph. For rl circuits curves a and b represents i l and v l respectively. The x axis represents time constants and the y axis represents a percentage of full current or voltage.
The rate of rising depends on the exponent t 𝝉. Since the value of frequency and inductor are known so firstly calculate the value of inductive reactance x l. The graph of current as a function of time in the rl circuit has the same form as the graph of the capacitor voltage as a function of time in the rc circuit while the graph of the inductor voltage as a function of time in the rl circuit has the same form as the graph of current vs.
A shows an rl circuit consisting of a resistor an inductor a constant source of emf and switches and when is closed the circuit is equivalent to a single loop circuit consisting of a resistor and an inductor connected across a source of emf b.
Remember that for capacitors i t c dv dt note that the current through the capacitor can change instantly at t 0 but the voltage changes slowly. The initial current is zero and approaches i 0 v r with a characteristic time constant τ for an rl circuit given by latex tau frac l r latex where τ has units of seconds since 1 h 1 ω s. Since the value of frequency and inductor are known so firstly calculate the value of inductive reactance x l. The inductor initially has a very high resistance as energy is going into building up a magnetic field.
