final-v2 - Intro General Physics II Final PHYS 1302 (20682)...

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Unformatted text preview: Intro General Physics II Final PHYS 1302 (20682) Summer 6W2 2009 Lau Name PS# Instructions 1. Solve 4 of the 6 problems. 2. Some useful constants and conversion factors: a. 34 6.63 10 J s h- = × ⋅ b. 8 3.00 10 m/s c = × c. μ = 4 π × 10- 7 T ⋅ m / A d. 1 nm = 10- 9 m e. R (Rydberg' s constant) = 1.097 × 10 7 m-1 f. m e = 9.109 × 10- 31 kg g. e = 1.6 × 10- 19 C 3. List the 4 problems you want to be graded before you turn in your test. ============================================================ Problems to be graded (list only four): 2 1. A series RLC circuit shown below has a resistance of 15 Ω, an inductance of 250 mH, and a capacitance of 54 μ F. The AC generator has a frequency of 60 Hz and a rms voltage of 170 V. a. What is the rms current in the circuit? (8) b. What is the maximum voltage drop across the capacitor? (12) c. There is no change in the power dissipated in the resistor if the capacitance is increased while all other quantities are kept constant. True or false? (5) Solution a. The rms current is given by 2 2 2 2 6 170 1 1 ( ) (15 ) (377 / 0.25 ) 377 / 54 10 170 3.57 47.6 rms rms rms V V V I Z R L s H C s F V A ω ω- = = = +- Ω + ×- × × = = Ω b. The maximum voltage drop across the capacitor is max max max 6 1 1 (3.57 2) 250 377 54 10 C C V...
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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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final-v2 - Intro General Physics II Final PHYS 1302 (20682)...

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