Fall 2010 Exam 2 Solutions

Fall 2010 Exam 2 - Physics 21 Fall 2010 Solution to Hour Exam#2 If you want to discuss the grading you must speak with the grader by Dec 8 1 Beels

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Physics 21 Fall, 2010 Solution to Hour Exam #2 If you want to discuss the grading, you must speak with the grader by Dec. 8. 1: Beels 2: Jones 3: Faust 4: Beels 5: Glueckstein Problem 1. For the following circuit: (a) (8 pts.) If R = 22 . 0 Ω, L = 25 . 0 mH, C = 10 . µ F, and ω = 800 . 0 rad / s, draw a phasor di- agram that is approximately to scale. Include a phasor for the ac voltage V , and give the length of each phasor. Draw a mark on your diagram to indicate the phase angle φ . (b) (3 pts.) Evaluate the peak value of the current I if the peak voltage supplied by the power supply is 8 . 00 V. Show all work. (c) (3 pts.) Evaluate the phase angle φ . Does the voltage lead or lag the current? (d) (3 pts.) What is the average power delivered to the circuit by the power supply? (e) (3 pts.) What is the time interval between a max- imum in voltage across the inductor and the next maximum in voltage across the power supply? Problem 2. A small circular wire loop is inside a larger loop that is connected to the circuit as shown....
View Full Document

This note was uploaded on 12/18/2011 for the course PHYS 021 taught by Professor Hickman during the Spring '08 term at Lehigh University .

Page1 / 5

Fall 2010 Exam 2 - Physics 21 Fall 2010 Solution to Hour Exam#2 If you want to discuss the grading you must speak with the grader by Dec 8 1 Beels

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online