Problem 6.2 The SPST switch in the circuit of Fig. P6.2 opens at t = 0 after it had been closed for a long time. Draw the configurations that appropriately represent the state of the circuit at t = 0, t = 0, and t = and use them to determine (a) vc (0) and i₁ (0), (b) ic (0) and v₁ (0), and (c) vc (∞) and i̟L (∞). 18 V(+ DL + m L 202 ww 5Ω t=0 + DC 4Ω Figure P6.2: Circuit for Problem 6.2.

*6.66 For the circuit shown in Fig. P6.66, find the labeled node voltages for: (a) B=0 (b) B=100 5 V 20 kQ 11 k2 OV2 o V5 Vị o 200 k2 V3 Q2 OV4 20 kQ 10 k2 -5 V

Find all currents and voltages for t>0 in this circuit. Assume dc steady state at t=0-

5. A 230-volt d-c source is suddenly impressed across an R-L circuit in which the inductance is 1.4 henrys. If the current is 3.16 amp at t = T, what will be the final value of the current, the circuit resistance, and the time constant? %3D is

6.18 The voltage across the terminals of a 250 nF capaci- PSPICE tor is MULTISIM S50 V, (Aje-4000r t<0; = + Azte 4000r) V, t2 0. The initial current in the capacitor is 400 mA. As- sume the passive sign convention. a) What is the initial energy stored in the capacitor? b) Evaluate the coefficients A and A2. c) What is the expression for the capacitor current?

Please give an explanation on how to get Vc(0),iL(0), etc..

= It is desired to design a Sallen-Key circuit (shown in figure below) to have an overdamped response with roots of the characteristic equation given by $1 -245rad/s and $2 =-355rad/sec. If the resistors used are R₁ =427 and R₂ =500, find the required value for the capacitor C₁. Enter your answer in units of micro-Farads (μ.F). 7.2365 R₁ V₁ R₂ C₂ 3.618 margin of error +/- 1% C₁ Vo

explain each step and show how to get to this answer please i do not undestand

An RC circuit has an emfof 100 volts, a resistance of 5 ohms, a capacitance of 0.02 farad, and an initial charge on the capacitor of 5 coulombs. Find the current in the circuit at any time t

For the circuit in Figure 3 the switch is in the left position for several minutes: (a) Find the Initlal voltage, V, on the capacitor just before the switch is flipped (b) Find an expression v(t) that describes the voltage across the 20 N resistor after the switch has been Figure 3 U 09 flipped to the right NOTE: Remember what we said in class: use a Circuit-Specific Equation to get a value you know. Then solve for whatever else the problem asks for +50 µF 380 0 20 2