Compute the resistance at the terminals of the following circuits
Find v(t) for 1 0 in the circuit of Fig. 7.44. Assume the switch has been open for a long time and is closed at t=0. Calculate v(t) at t = 0.5.
Please help with number 1. 1
SECTION - A Question 1 - DC Circuits and DC Transients [25] After having been open for a very long time, the switch in the circuit shown in Figure 1 is closed at t= 0. Cat Find the currents 11, 12 and is immediately after the switch has been closed. 61 Find the equivalent resistance after the switch is closed and determine the time constant of the circuit. 0 Determine the mathematical expressions for...
1. RL Circuits For the circuit in Figure 1, find the inductor voltage vit) if a) v(t) is the step function: 0 Vfor t<0 and 10 V for t>0. What is the time constant in this case? b) vs(t) 15 cos(100 t). You may use either the direct time-domain method, or use (complex) phasor method. 52 102 5mH L(t) Figure 1 2. Impedance You are given six black boxes, labelled "1" to ", each with two terminals. You are told...
First-order circuits For the circuit shown below, the switch has been closed for a long time and it is opened at t = 0. Calculate the capacitor voltage, v(t) for all t. 6.2 30V V 2F !
5. [RC Circuits] Consider the circuit shown in Figure 5 attached. As shown, the switch is in position "A" for t < 0, and the circuit has been at rest for a long time. At time t = 0, the switch opens and the capacitor starts to drain across the resistor. (a) When the switch is closed and there is only a direct current (DC) source, the capacitor acts like an open circuit. Find the constant voltage across the capacitor...
circuits urgent help
Q3. In the circuit in Figure 3, the switch S has been open for a very long time. It is closed at t= 0. (a) Find the current i(t) through the inductor for t2 0. (15 pts) (b) Find the voltage volt) for all t (i.e. for -- <t<5). (10 pts) 102 20 2 Vo t = 0 S + 50 V 0.100 50 mH
This is a very interesting problem that i cant figure out.
please answer the question clearly and show all work.
Thanks!
A voltage source, in the circuit shown below, is short-circuited at its terminals by closing switch Si. At the time the switch is closed, the circuit has been in operation for a long time. Circuit values. Vs- 480 V Rs-1 S RI 10 ? R2 15? L1-2 mH L2-12 mH a) Find the initial value of the current through...
Can you help me do b)?
In the circuit below, a) For t < 0, the switch has been open for a long time, find the inductor current? b) For t > 0, the switch is closed at t=0, find the inductor current using Thevenin's equivalent at the terminals a and b? And sketch the current waveform? c) Then find the steady-state, transient, forced and natural components? 22 V 10 v t=0 X 22 §
1) RC Circuits: (15 pts) (a) Use Kirchhoff's voltage law (KVL) to obtain an ordinary differential equation (ODE) describing the charge vs. time function (t) for a capacitor in the discharging RC circuit shown below. Assume that at time t = 0 (right before the switch is closed) the voltage across the capacitor is V = V.. R R W W V. с v(t) с t = 0 t> 0 Fig. 1. Fully charged RC circuit Fig. 2. Discharging RC...
Don't use Laplace method
Don't use Laplace method
Don't use Laplace method
Don't use Laplace method
Don't use Laplace method
Consider the circuit shown in Fig. 3 22 SW1 SW2 5Ω CF 25 V 20 S 10 V 3 H BL Figure 3: The circuit of Problem3 The switch SW1 has been closed for a long time before it is opened att has been opened for a long time before it is closed att 0 0 while the switch SW2...
1. Find v(t) fort> 0 in the circuit in below: t=0 222 w 622 w + 10V 2 F +1 50 V Assume the switch has been open for a long time and is closed at t=0.