# Extra Credit Midterm 2-solutions - scribner(eks662 Extra...

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scribner (eks662) – Extra Credit Midterm 2 – yeazell – (55745) 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 10.0points An electric field is given by E x = αx 3 , where α = (4 kN / C / m 3 ). Find the potential difference as you go from the point x = 1 m to the point x = 3 m on the x -axis. as the charge q moves from the other vertex to the center of the line joining the fixed charges (as shown above)? 1. Δ V = 2 k Q q a 2. Δ V = 6 k Q q a 3. Δ V = 4 k Q q a 002 10.0points What is the change in the electric potential as the charge q moves from the other vertex to the center of the line joining the fixed charges (as shown above)? 1. Δ V = 2 k Q q a 2. Δ V = 6 k Q q a 3. Δ V = 4 k Q q a
The two charges Q are fixed at the vertices of an equilateral triangle with sides of length a as shown. a a a Q Q q Δ V = V f V i = 2 k Q a . 003 10.0points Consider the circuit
scribner (eks662) – Extra Credit Midterm 2 – yeazell – (55745) 2 r 1 r 2 R E 1 E 2 A D E B C F i 1 i 2 i Applying Kirchhoff’s rules, what equation does the loop ABCDA yield?
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