The triangular pulse below is applied to a 20 mH inductor. i (mA) 250 0 5 10 t (ms) (a) Write the expressions that describe i(t) in the four intervals: t<0, 0≤t≤ 5ms, 5ms ≤ t ≤ 10ms, t > 10ms. (b) Derive the expressions for the inductor, voltege, power, and energy.

The current in a 0.6 microfarad capacitor is 0 [A] for time less than zero and 3cos50000t [A] for time greater than or equal to zero. Find v(t) and the maximum power delivered to the capacitor.

Which of the following statements is FALSE: a) Resistors dissipate energy but capacitors can store it. U5 Dielectric is another name for an insulating material. ) The ideal capacitor completely dissipates all energy supplied to it. The total capacitance of capacitors in parallel equals the sum of the individual O d) capacitors. Ca

If in a circuit, E=9v and the current I reaches half its maximum value of 2A at t=0.1s after the switch is closed. What is the time constant of the circuit? What is the emf across the inductor at t=0.1s?

An LC circuit like that in the figure below consists of a 3.30-H inductor and an 836-pF capacitor that initially carries a 118-μC charge. The switch is open for t < 0 and is then thrown closed at t = 0. Compute the following quantities at t = 5.00 ms. 2max 000 (a) the energy stored in the capacitor (b) the total energy in the circuit (c) the energy stored in the inductor 0

ЗА 34 kN ER 30 mH The switch in the circuit shown in (Figure 1) has been in position 1 for a long time. At t = 0, the switch moves instantaneously to position 2. Find the value of R so that 32% of the initial energy stored in the 30 mH inductor is dissipated in R in 21us.

2. Charging a capacitor through a resistor. The capacitor initially starts with no charge. Refer to the circuit diagram on the right. R = 1800 N C = 225 µF %3D (a). Write down the mathematical expression for the voltage across the capacitor as a function of time. (b). Calculate the time constant for this circuit. (c). Calculate the voltage across the capacitor at the end of 2 time constants. (d). Calculate the electric charge stored in the capacitor at the end of 2 time constants. (e). Explain what happens to the voltage across the capacitor after the time interval t = 5 time constants. (f). Carefully draw a graph of the time dependent behavior of the voltage across the capacitor, and label everything! (g). Calculate the time elapsed when the voltage across the capacitor is equal to the voltage across the resistor. Vps = 10 volts

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8. A 62.5-µf capacitor is connected in series with a 200,000-ohm resistor and to a 250-volt d-c source. (a) Write the expression for the charging current following the closing of the switch. (b) What is the initial charging current? (c) Calculate the time constant and the charging current at t = t. (d) What will be the initial rate of current change?

Please answer question number 2.