Phy102&09-II-ms2

Phy102&09-II-ms2 - Problems Please show all...

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Unformatted text preview: Problems Please show all working; give only one solution 1. A proton moves in a region of uniform electric and magnetic fields: vector E = (75 . 0 N/C) b ı and vector B = (0 . 200 T) b ı + (0 . 300 T) b + (0 . 400 T) b k . Find the components of the proton’s acceleration vectora when its velocity vectorv = (0 . 200 km/s) b ı . [3] Using vectorv × vector B = v b ı × vector B == + vB y b k- vB z b and vector F = (+ e )( vector E + vectorv × vector B ), a x = e m p | vector E | = 7 . 19 × 10 9 m/s , a y = e m p (- vB z ) =- 7 . 66 × 10 9 m/s , a z = e m p vB y = 5 . 75 × 10 9 m/s . 2. The cylindrical conductor below (of length L = 10 . 0 cm and diameter d = 1 . 50 mm) has a resistivity of 2 . 82 × 10- 8 Ω · m. Find the magnitude | vector E | of the uniform electric field responsible for the current I = 1 . 25 A through the conductor. [2] | vector E | = ρ I πd 2 / 4 = 1 . 99 × 10- 2 V/m Cylinder I = 1 . 25 A d L 3....
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This note was uploaded on 11/03/2009 for the course PHY 101 taught by Professor Exams during the Spring '07 term at Kuwait University.

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Phy102&09-II-ms2 - Problems Please show all...

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