Homework 4
1. Problem 3.14 in the textbook. First you will need to derive the equation of motion. For the dashpot force, youll need dy/dt but y is a function of x. Think about how to get dy/dt. 2. Pro
HW 4 answers P3.1 Describe the construction of capacitors. Answer Capacitors consist of two parallel thin plate conductors separated by a thin layer of insulating material. P3.3 If the voltage across
Homework 5
1. Problem 4.1 in the textbook.
2. Problem 4.4 in the textbook. Suggestion: Find the particular and homogeneous solutions of the ordinary differential equation. 3. 4. Problem 4.5 in the tex
{a} The 1 cf and 2 uf in series an the left
have a cap cft1it2jitt1+21= 2.13. The 2.13
Lit in parallel with the 3 uf is (sews =
3.6666 uf. lGcing to the right sicle cf the
circuiL the 1 UT and 1 cf in
HW 6 answers
Using the parallel Z formula for two elements in parallel: 1 / ( 1/Z1 + 1/Z2) = Z1Z2/(Z1+Z2) and Z1 = jwL and Z2 = 1/jwC = j(1/wC) then:
(jwL)(j(1/wC) j wL (jwL)+j(1/wC) j(wL1/wC) (1w2LC)
Homework 7
1. Problem 5.13 in the textbook.
2. Problem 5.20 in the textbook. Use as coordinates the extensions of the springs. 3. Problem 5.14 in the textbook. The linearized equations of motion from
HW 7 answers
A more meaningful and easier graph could have been done as a Bode plot. Consider that when the frequency is low, the inductor L impedance is small compared to the resistors. Then R1 and R
Homework 10
1. Problem 7.6 in the textbook. The second sentence of the problem should say, Assume that mass of and undergoes small angular displacements Ignore weight in this problem. and the mass cen
Homework 3
1. Problem 3.3 in the textbook. The angle is the angle of rotation for the pendulum, and can be assumed to be small for the second part of the problem. 2. Problem 3.5 in the textbook. Make
EE331-15805 Test 4 - Preston -
Closed book
Your name:_
1. (1 point each 20 total) Write the answer to the left of each question. right _Which direction is the force on a current out of a page that is
Homework 1
1. Problem 1.2 in the textbook. Note that since the hoop is smooth, there is no friction force. The problem statement suggests summing forces in the transverse (or tangential, or circumfere
P 1.5 The charge on an electron is 1.6e-19 coulombs. A current of 1 ampere flows in a wire carried by electrons. How many electrons pass through a cross section of the wire each second? Hintthe defini
Homework 2
1. 2. Problem 2.3 in the textbook. Problem 2.6 in the textbook.
3. Problem 2.11 in the textbook. You will have to do a correct dynamic analysis (including a free-body diagram) to get an equ
HW 2
Redraw the figure as shown here: Then the 1 and 3 ohm resistors are in parallel with (3)(1)/(3+1) = 3/4 ohms and the 4 and 2 ohm resistors are in parallel with (4)(2)/(4+2) = 8/6 = 4/3 ohms. The
HW 2
Redraw the figure as shown here: Then the 1 and 3 ohm resistors are in parallel with (3)(1)/(3+1) = 3/4 ohms and the 4 and 2 ohm resistors are in parallel with (4)(2)/(4+2) = 8/6 = 4/3 ohms. The