3.32 3.3Z ) Find the voltage in the circuit in F P3.37 ing voltage and/or current...
6.39 Let vg represent the voltage across the current source in the circuit in Fig. 6.29. The reference for vg is posi- tive at the upper terminal of the current source. a) Find vg as a function of time when , = 16-16e-51 A. b) What is the initial value of vg? c) Find the expression for the power developed by d) How much power is the current source develop- e) Calculate the power dissipated in each resistor the current...
2. The voltage across the 22.522 resistor in the circuit below is 90 V, positive at the upper terminal A 90 V 222.5 1 240 V 512 20.02 mise (a) Find the power dissipated in each resistor (b) Find the power delivered by the voltage source.
Given the following circuit, find the voltage V3, of the
circuit, if element A is
a) A short circuit
b) An independent 9V voltage source, with the positive reference
on the left
c) A dependent current source, with the arrowhead to the left
and marked 5i1.
10 Ω 20 Ω 20 V S 60V A 1, 40 Ω + 30 Ω"
Using source transformations, find the current I and the voltage Vab of the circuit in Figure 9 (Ans: -0.2A, 8V) R60 ab 40 2 E224 V E348 V Figure 9
Do the following problems 1) The voltage across a given circuit element is Vab-20 V. A positive charge of 2 C moves through the circuit element from terminal b to terminal a. How much energy is transferred? Is the energy supplied by the circuit element or absorbed by it? 2) Find the power by each element in the circuit of Fig. I 12 V 5A 8 V 20V 0.25, 2A 8A Figure 1 3) Assume that you are measuring the...
A simple DC circuit is shown below with ideal current and voltage
sources.
Find the voltage (Vout) across the current source, in volts.
212 10 V 5A out
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...
6. Use the Voltage-Division principle to find voltage v. Then find the current i1, i2, and is of the circuit using the principle of Current-Division. R,-: 20 Ω 2 20Ω R,-20 Ω 10 V
n the circuit shown, the AC voltage source supplies an rms voltage of 156 V at frequency f. The circuit has R = 99 W, XL = 190 W, and XC = 93 W. (a) Find the impedence of the circuit. Z = W (b) Find the rms current flowing in the circuit. Irms = A (c) Find the phase angle in degrees between the current in the circuit and the voltage supplied by the AC source. f = degrees ...
R1 R3 300 300 R4 900 LE1 22. For the following circuit: a) Show the voltage polarities across each resistor? b) Find the voltage drop across each resistor? c) For each resistor select an appropriate current direction and find the current? d) Calculate the current for each voltage source? e) Calculate the total dissipated power by the circuit? f) Calculate the total produced power by the circuit? E3 45 V 30 V