1BFinalSol2

1BFinalSol2 - /Ph8¢_s a‘cg Summer 2005 Final Date...

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Unformatted text preview: /Ph8¢_s a‘cg Summer 2005, Final, Date: 09/03/2005 Instructor: Valentin Shevchenko ' _'—pmb1em # ml Name: Graded by: V6roblem 1. Three identical point charges (q = -5 ,uC ) are located along the circle‘ of 2 m radius at angles of 30°, 150°, and 270° as shown in Figure below. What is the resultant electric field at the center of the circle? Answer: Problem 2. - _ - Two point charges are located as shown in Figure below, where q1 = 4 ,uC, q2 = -2 MC; a =0.30 m, and b =0.90 m. Calculate the value of the electrical potential at points P1 and P2. Which point is at the higher potential? \/Pr oblem 3. . p A_ voltage V =j10V is applied to, the terminal of the below circuit. What is thetotal charge in the circuit as a result of this? ' ' Answer: “’8’ 0:6 .5 cum I CSIIIF CIIZHF L ‘/Problem 4. What current does the ammeter in the below circuit measure? Answer: 2.0V /Problem 5. A rectangular loop with resistance R has N turns, ea shown in Figure below. The loops moves ch of length l and width w as into a uniform magnetic field B with velocity 17. What is the magnitude and direction of the resultant force on the loop (a) as it enters the magnetic field? (b) as it moves within the magnetic field? (0) as it leaves the magnetic field? Bin Answer: 0 ' " x. a . x. ‘x w x 2' w. m» m “’Zv T “W: R 3’ __,,_,,\ , "W ‘lV I‘d—1:1; «tn: —L\Iz+“\= 3’ 1“ “I - =3. 2:1 “(0'11\+"'\1+7-'O =’ T“ 3*3 => 3«-3 =er % E H ‘5. (0O x x (303 Lcwx X N\ Fx tx F=0 xx x V (b‘éf-C‘) KP ,k X X >< ~< L1. F11st F: K =£v~13 ...
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This test prep was uploaded on 04/21/2008 for the course PHYS 1B taught by Professor Briankeating during the Spring '07 term at UCSD.

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1BFinalSol2 - /Ph8¢_s a‘cg Summer 2005 Final Date...

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