{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

# HW5 - Version One – Homework 5 – Savrasov – 39819 –...

This preview shows pages 1–2. Sign up to view the full content.

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

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Version One – Homework 5 – Savrasov – 39819 – May 01, 2006 1 This print-out should have 7 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. The due time is Central time. Current in Tungsten Wire 27:02, calculus, numeric, > 1 min, normal. 001 (part 1 of 1) 2 points A 0 . 9 V potential difference is maintained across a 1 . 5 m length of tungsten wire that has a cross-sectional area of 0 . 6 mm 2 and the resistivity of the tungsten is 5 . 6 × 10- 8 Ω · m. What is the current in the wire? Correct answer: 6 . 42857 A. Explanation: Let : V = 0 . 9 V , ‘ = 1 . 5 m , A = 0 . 6 mm 2 = 6 × 10- 7 m 2 , and ρ = 5 . 6 × 10- 8 Ω · m . The resistance is R = V I = ρ ‘ A , so the current is I = V A ρ ‘ = (0 . 9 V)(6 × 10- 7 m 2 ) (5 . 6 × 10- 8 Ω · m)(1 . 5 m) = 6 . 42857 A . Drift Speed in Copper Wire 27:02, calculus, numeric, > 1 min, normal. 002 (part 1 of 1) 2 points Calculate the average drift speed of electrons traveling through a copper wire with a cross- sectional area of 5 . 261 mm 2 when carrying a...
View Full Document

{[ snackBarMessage ]}

### Page1 / 3

HW5 - Version One – Homework 5 – Savrasov – 39819 –...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online