Inductor: Stores energy in a magnetic field, resists changes in current. Capacitor: Stores energy in an electric field, resists changes in voltage.

LR Circuit: Contains inductor and resistor, current changes exponentially. LC Circuit: Contains inductor and capacitor, energy oscillates between them sinusoidally.

Inductor: $U = \frac{1}{2}LI^2$ (magnetic field). Capacitor: $U = \frac{1}{2}CV^2$ (electric field).

Inductor: Acts like an open circuit initially. Capacitor: Acts like a short circuit initially.

Inductor: Acts like a wire (short circuit) after a long time. Capacitor: Acts like an open circuit after a long time.

Increases the inductance (L).

Increases the inductance (L).

A large induced EMF opposes the change in current.

The circuit oscillates, with energy transferring between the inductor's magnetic field and the capacitor's electric field.

The oscillations are damped, and energy is dissipated as heat.

The energy stored in the inductor quadruples.

1. Determine the inductance (L) of the inductor. 2. Find the current (I) flowing through the inductor. 3. Use the formula: $U = \frac{1}{2}LI^2$.

1. Identify the inductance (L) and resistance (R). 2. Calculate the time constant: $\tau = \frac{L}{R}$. 3. Use the formula: $I(t) = \frac{\varepsilon}{R}(1 - e^{-t/\tau})$.

1. Identify the EMF ($\varepsilon$) and time constant ($\tau$). 2. Use the formula: $V_L(t) = \varepsilon e^{-t/\tau}$.

1. Identify the maximum charge ($Q_{max}$) and angular frequency ($\omega$). 2. Use the formula: $Q(t) = Q_{max} \cos(\omega t)$.

1. Identify the maximum charge ($Q_{max}$) and angular frequency ($\omega$). 2. Use the formula: $I(t) = -\omega Q_{max} \sin(\omega t)$.