[amp_mcq option1=”Oscillating” option2=”Square wave” option3=”Sinusoidal” option4=”Non-oscillating” correct=”option4″]
The correct answer is D. Non-oscillating.
In a loss-free R-L-C circuit, the transient current is non-oscillating. This is because the energy stored in the inductor and capacitor is dissipated in the resistor, causing the current to decay exponentially.
Option A is incorrect because the transient current is not oscillating. Option B is incorrect because the transient current is not a square wave. Option C is incorrect because the transient current is not sinusoidal.