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11. The quantity of charge q (in coulombs) that has passed through a surface varies with time according to the equation q = t² + 5t+6, where t is in seconds. What is the instantaneous current through the surface at t= 1.00 s? A. 17 A B. 13 A C. 7 A D. 9 A

11. The quantity of charge q (in coulombs) that has passed through a surface varies with time according to the equation q = t² + 5t+6, where t is in seconds. What is the instantaneous current through the surface at t= 1.00 s? A. 17 A B. 13 A C. 7 A D. 9 A

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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6. Over a certain region of space, the electric potential function is V = 5x - 3x² y + 2 y 2². What is the electric field at the point P, which has coordinates (1,1,1). C. -5i+] A. 6)-2k B. -j+k 7. A rod of length L lies along the y-axis with its end at the origin. It has a nonuniform D. i+j-4k charge density=ay. The electric potential at point A is (a is constant) kx A. V = -dx d + x 0 L B. V = f ky -dy d+x A kax C. V = d+x D.V=j kay dy d+y 8. A wire of 2 mm² cross-sectional area and 1.3 cm long contains 2 x1020 electrons. It has a 102 resistance. What is the drift velocity of the charges in the wire when 5 Volts battery is applied across it? A. 2x 10-¹ m/s B. 7.8 x 10 m/s C. 1.6 x 10-3 m/s D. 3.9 x 10 m/s 9. A toaster is rated at 550 W when connected to a 220 V source. What current does the toaster carry? A. 2.0 A D. 3.5 A B. 2.5 A C. 3.0 A 10. What does it cost to cook a chicken for 2 hours in an oven that operates at 20 Ampere and 220 Volt if the electric company charge 40 fils per kWh A. 264 Fils D. 176 Fils B. 528 Fils C. 352 Fils 11. The quantity of charge q (in coulombs) that has passed through a surface varies with time according to the equation q = t² + 5t+6, where t is in seconds. What is the instantaneous current through the surface at t= 1.00 s? C. 7 A D. 9 A A. 17 A B. 13 A 12. A circuit has 4 capacitors of equal capacitance Co 30 uF. What is the equivalent capacitance Ceq of the circuit? A. 40 μF of o B. 30 μF C. 20 μF D. 50 μF E. 10 μF -dx ç tilt HTT
Transcribed Image Text:6. Over a certain region of space, the electric potential function is V = 5x - 3x² y + 2 y 2². What is the electric field at the point P, which has coordinates (1,1,1). C. -5i+] A. 6)-2k B. -j+k 7. A rod of length L lies along the y-axis with its end at the origin. It has a nonuniform D. i+j-4k charge density=ay. The electric potential at point A is (a is constant) kx A. V = -dx d + x 0 L B. V = f ky -dy d+x A kax C. V = d+x D.V=j kay dy d+y 8. A wire of 2 mm² cross-sectional area and 1.3 cm long contains 2 x1020 electrons. It has a 102 resistance. What is the drift velocity of the charges in the wire when 5 Volts battery is applied across it? A. 2x 10-¹ m/s B. 7.8 x 10 m/s C. 1.6 x 10-3 m/s D. 3.9 x 10 m/s 9. A toaster is rated at 550 W when connected to a 220 V source. What current does the toaster carry? A. 2.0 A D. 3.5 A B. 2.5 A C. 3.0 A 10. What does it cost to cook a chicken for 2 hours in an oven that operates at 20 Ampere and 220 Volt if the electric company charge 40 fils per kWh A. 264 Fils D. 176 Fils B. 528 Fils C. 352 Fils 11. The quantity of charge q (in coulombs) that has passed through a surface varies with time according to the equation q = t² + 5t+6, where t is in seconds. What is the instantaneous current through the surface at t= 1.00 s? C. 7 A D. 9 A A. 17 A B. 13 A 12. A circuit has 4 capacitors of equal capacitance Co 30 uF. What is the equivalent capacitance Ceq of the circuit? A. 40 μF of o B. 30 μF C. 20 μF D. 50 μF E. 10 μF -dx ç tilt HTT
The first three questions are about the following situation: The following circuit contains three capacitors C₁ = 20 μF, C₂ = 8 μF, and C₂ = 12 μP connected to a battery with an unknown emf e. The charge on capacitor C₁is Q₁ = 14 μC. 1. What is the equivalent capacitance Ceq of the circuit? tha A. 7.5 x 10-6 F B. 8.0 x 10-6 F C. 10.0 x 10-6 F D. 12.0 x 10-6 F E 2. How much energy is stored on capacitor C₁? C₂ C3 A. 4.9 x 10-6J B. 3.0 x 10-6 J C. 2.5 x 10-61 D. 4.5 x 10-6 J 3. What is the charge Q₂ on capacitor C₂? A. 9.0 x 10-6C B. 3.3 x 10-6C C. 4.5 x 10-6 C D. 5.6 x 10-C 4. A parallel-plate capacitor has plates of dimensions 2.0 cm by 3.0 cm separated by a 1.0- mm thickness of dielectric material (k=11.1), what is its capacitance? B. 40 pF A. 20 pF C. 60 pF D. 80 pF 5. A spherical liquid drop of radius R has a capacitance of C= 4ne, R. If two such drops combine to form a single larger drop, what is its capacitance? A. 2 C B. C C. 1.26 C D. 1.46 C
Transcribed Image Text:The first three questions are about the following situation: The following circuit contains three capacitors C₁ = 20 μF, C₂ = 8 μF, and C₂ = 12 μP connected to a battery with an unknown emf e. The charge on capacitor C₁is Q₁ = 14 μC. 1. What is the equivalent capacitance Ceq of the circuit? tha A. 7.5 x 10-6 F B. 8.0 x 10-6 F C. 10.0 x 10-6 F D. 12.0 x 10-6 F E 2. How much energy is stored on capacitor C₁? C₂ C3 A. 4.9 x 10-6J B. 3.0 x 10-6 J C. 2.5 x 10-61 D. 4.5 x 10-6 J 3. What is the charge Q₂ on capacitor C₂? A. 9.0 x 10-6C B. 3.3 x 10-6C C. 4.5 x 10-6 C D. 5.6 x 10-C 4. A parallel-plate capacitor has plates of dimensions 2.0 cm by 3.0 cm separated by a 1.0- mm thickness of dielectric material (k=11.1), what is its capacitance? B. 40 pF A. 20 pF C. 60 pF D. 80 pF 5. A spherical liquid drop of radius R has a capacitance of C= 4ne, R. If two such drops combine to form a single larger drop, what is its capacitance? A. 2 C B. C C. 1.26 C D. 1.46 C
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