A switch was closed to connect an inductor (7 H), a resistor (87 Ω) and a voltage source (44 V) all in series. Determine magnetic energy (in joules) that will be stored in the inductor after 5.3 s.
Added by David G.
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Step 1: The current in an RL circuit is given by: $I(t) = \frac{V}{R}(1 - e^{-t/\tau})$ where $V$ is the voltage source, $R$ is the resistance, $t$ is the time, and $\tau = L/R$ is the time constant, with $L$ being the inductance. Show more…
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