Quiz#3-soln - Quiz #3 Name ______________...

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Unformatted text preview: Quiz #3 Name ______________ PS#________________ PHYS 1302 Summer 6W2 2009 Lau ------------------------------------------------------------------------------------------------------------ Constants k=1/(4 πε )= 8.99 x 10 9 in SI units. The charge of an electron is –e = -1.6x10-19 C μ =4 π x 10-7 in SI units ---------------------------------------------------------------------------------------------------------- 1 An electron moves at a speed of 5.0 × 10 5 m/s normal to the direction of a magnetic field of 0.50 T. Find the force acting on the electron. Solution: 19 5 14 sin (1.6 10 )(5.0 10 / )(0.50 )(sin90 ) 4.0 10 F q B C m s T N υ θ-- = = × × ° = × A. 4.0 × 10-14 N B. 1.5 × 10-13 N C. 2.5 × 10 5 N D. 4.0 × 10-13 N E. 8.8 × 10-13 N ------------------------------------------------------------------------------------------------------------ 2. A wire 25 cm long, carrying a current of 5.5 A, is placed at an angle of 30 ° relative to a uniform magnetic field of 0.20 T. Find the force acting on the wire....
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This note was uploaded on 04/10/2010 for the course PHYS 1102 taught by Professor Lau during the Spring '10 term at Houston Baptist.

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Quiz#3-soln - Quiz #3 Name ______________...

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