Homework 7-problems

Homework 7-problems - zhou (ejz224) – Homework 7 – shih...

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Unformatted text preview: zhou (ejz224) – Homework 7 – shih – (57480) 1 This print-out should have 10 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points An electron is accelerated by a 3 . 5 kV poten- tial difference. The charge on an electron is 1 . 60218 × 10- 19 C and its mass is 9 . 10939 × 10- 31 kg. How strong a magnetic field must be expe- rienced by the electron if its path is a circle of radius 5 . 9 cm? Answer in units of T. 002 (part 1 of 3) 10.0 points Two identical parallel sections of metal rods are connected parallel to a battery as shown. The two sections of metal rods are free to move. b b 5 . 2m . 14 m 3 . 7 V When the switch is closed, the two parallel metal rods 1. will move away from each other. 2. both will move toward the right. 3. will heat up, and remain motionless. 4. both will move toward the left. 5. will change in a way not determined by the information given....
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This note was uploaded on 04/09/2011 for the course PHY 302l taught by Professor Morrison during the Spring '08 term at University of Texas.

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Homework 7-problems - zhou (ejz224) – Homework 7 – shih...

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