The current in a 200 mH inductor is t<0; i = 75 mA, i = (Bị cos 200t +B2 sin 200t)e-3* A, t>0. The voltage across the inductor (passive sign convention) is 4.25 V at t = 0. Calculate the power at the terminals of the inductor at t = 25 ms. State whether the inductor is absorbing or delivering power.

2. A capacitor having a capacitance of 2.0 µF consists of two metal elec- trodes separated by an insulating spacer made of crystalline silicon. Silicon is a semiconductor, having a conductivity of 1.6x10-3 S/m and dielectric constant of 11.7. The capacitor is placed in a series with a 12 volt battery in a closed loop circuit. When steady state is reached, what is the charge on the capacitor, and what is the current in the circuit?

PSPICE The current in a 50 µH inductor is known to be MULTISIM iL = 18te-104 A fort > 0. a. Find the voltage across the inductor fort > 0. (Assume the passive sign convention.) b. Find the power (in microwatts) at the terminals of the inductor when t = 200 ms. c. Is the inductor absorbing or delivering power at 200 ms? d. Find the energy (in microjoules) stored in the inductor at 200 ms. e. Find the maximum energy (in microjoules) stored in the inductor and the time (in milliseconds) when it occurs.

An 8 mH inductor and a 2omega resistor are in series with a 20V battery. The switch is closed for t=0 at which the current is 0. Determine the potential across the inductor and across the resistor.