PH 221 Midterm Exam Asnwers 100% Correct To Download This Tutorial Visit below Link http://www.student-of-fortune.com/downloads/ph-221-midterm-exam-asnwers-100-correct/ (Product Type) : Instant Downloadable
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3. If a current is flowing with a value of 5.9 A, how much electron charge passes any single point in 25 seconds? 2. A) 2.3 x 1020 e 3. B) 1.9 x 1020 e 4. C) 9.2 x 1020 e 5. D) 1.5 x 1020 e 4.
See the figure. The net force on the 1 nC charge is zero. What is q? 1. A) zero 2. B) 0.68 nC 3. C) 4.0 nC 4. D) 1.5 nC 5. Estimate the average power output of the Sun, given that about 1350 W/m2 reaches the upper atmosphere of the Earth. The distance from the Sun to the Earth is 1.5 × 1011 m. 1. A) 4 × 1026 W 2. B) 3 × 1026 W 3. C) 2 × 1026 W 4. D) 1 × 1026 W
6. Which of the equations here is valid for the circuit shown? 1. A) 2 – 2I1 – 2I2 – 4I3 = 0 2. B) 6 – I1 – 2I2 = 0 3. C) -2 – I1 + 4 – 2I2 = 0 4. D) 4 – I1 + 4I3 = 0 7. Starting from rest, a proton falls through a potential difference of 2700 V. What speed does it acquire? 3. A) 3.6 × 105 m/s 4. B) 2.4 × 105 m/s 5. C) 7.2 × 105 m/s 6. D) 4.8 × 105 m/s 8. If the force between two charges increases by a factor of 16 because the charges are moved closer together, how much closer are they moved? 1. A) 4 2. B) 2 3. C) 8 4. D) 16 9. A concave mirror with a radius of 30 cm creates a real image 40 cm from the mirror. What is the object distance?
1. 2. 3. 4.
A) 24 cm B) 70 cm C) 5.0 cm D) 10 cm
10. A flux of 4.0 Ă— 10-5 Wb is maintained through a coil for 0.50 s. What emf is induced in this coil by this flux? 2. A) 2.0 x 10-5 V 3. B) No emf is induced in this coil. 4. C) 8.0 x 10-5 V 5. D) 4.0 x 10-5 V