Handout 3_midterm2_preparation_solution_Q3_Q4.pdf - ECE 333 UMass Amherst Handout 3 1 A time-dependent voltage source with an internal resistance of Rg

# Handout 3_midterm2_preparation_solution_Q3_Q4.pdf - ECE 333...

• Test Prep
• 6

This preview shows page 1 - 3 out of 6 pages.

ECE 333 UMass Amherst Handout 3 1.A time-dependent voltage source with an internal resistance of Rgis connected to an air-spaced lossless transmission line of length l= 300m which is terminated in a load resistance RL. (a)Using the bounce diagram, sketch the voltage and current at the mid-point of the transmission line (z= l/2) for 0 <𝑡𝑡< 3 µs. (b)Using the bounce diagram, sketch the voltage and current on the line at 𝑡𝑡= 1.5µs. (c)Find the steady state values of 𝑉𝑉+, 𝑉𝑉, 𝐼𝐼+, and 𝐼𝐼on the line. Z0= 50 z = 0 Rg= 25 Vgz =𝑙𝑙+ RL= 100 Vg(t) (V) t (µs) 0 1 9 18
ECE 333 UMass Amherst 2.The magnetic field beside a straight wire along the 𝑧𝑧axis in free space that is carrying a time varying current 𝑖𝑖(𝑡𝑡) = 10 cos(106𝑡𝑡) (A) is given approximately by 𝑯𝑯=𝑖𝑖(𝑡𝑡)2𝜋𝜋𝜋𝜋𝝓𝝓.Consider a square clockwise contour with a side length 𝑎𝑎= 2cm at a distance 𝑑𝑑=1 cm from the wire.

#### You've reached the end of your free preview.

Want to read all 6 pages?

• Fall '09

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern