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1. The current in two straight, parallel, fixed wires are in the same direction. If currents in the both wires are doubled, the magnitude of the magnetic force between the two wires A) decreases! B) remain the same, C) doubles, D)quadruplicates, E) no solution. Dt-garrying wire with the the wire?

1. The current in two straight, parallel, fixed wires are in the same direction. If currents in the both wires are doubled, the magnitude of the magnetic force between the two wires A) decreases! B) remain the same, C) doubles, D)quadruplicates, E) no solution. Dt-garrying wire with the the wire?

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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wires are doubled, the maghitude of the magnetic force between the two wires A) decreases! B) remain the same. C) doubles, (D)quadruplicates, E) no solution. 2. Each diagram below represents a cross section of a long, straight, current-carrying wire with the current direction into the page. Which diagram best represents the magnetic field near the wire? A) A, В) В, C) C, D) D, E) no solution B) D) A) 3. Which statement is well defined and correct ? A) 5 m is less than 10 kg, D) 5 m² is less then 10 m, E) 5 kHz is less than 10 MHz B) 5 cm is less than 10 mm, C) 5 mg is less than 10 ug, 4. Symbol p in the Physics formula p=mv represents: B) power, A) momentum, E) dipole moment. C) phosphorus, D) pressure, 5. The volume of an ideal gas is increased from 10m' to 20m while maintaining a constant pressure of 1000 Pa (1 Pa =1 N/m²). How much work is done by the gas in this expansion? A) 3kJ B) 7kJ C) 10kJ D) 200kJ E) No solution 6. Symbol fin the Physics formula 1/o + 1/i = 1/f represents: A) net force, B) fluid pressure, C) frequency, D) friction, E) focal length, 7. What does the symbol c mean in the Physics formula: Q = cmAT ? A) speed of light, B) specific heat capacity, C) centripetal acceleration, D) conductivity, E) coulomb. 8. What is the weight of 70-g mass ( on the surface of the Earth)? A) 0.7 kN B) 0.07 g C) 7 N D) 700 N E) 0.7 N 9. An object has a weight of 18N when it is locates on the surface of the Earth. What would it weight (the gravitational force due to the Earth) be if the object tripled its distance from the center of the Earth by flying in a spacecraft? A) 1 N B) 2 N C) 3 N D) 6 N E) 1.8 kg 10. To stretch a spring a distance of 0.2 m, 40 J of work is done. What is the value of the spring. constant k of the spring. A) 2 kN / m B) 8m J C) 0.005 m' kg's D) 200 newtons E) No solution 11. Ten coulombs of positive charge flow from the +9 V positive terminal of a battery to the negative terminal at +3 V. What is the change in potential energy of the charge? A) 90 J B) 30 J C) 60 J D) -60 J E) No solution 12. A 10-2 resistor has a voltage difference of 2 V across its leads. What is the power being dissipated in this resistor? A) 0.4W B) 20W C) 0.2W 13. What is frequency of a sound wave with a wavelength of 0.34 m traveling in room-te D) 40W E) No solutio
Transcribed Image Text:wires are doubled, the maghitude of the magnetic force between the two wires A) decreases! B) remain the same. C) doubles, (D)quadruplicates, E) no solution. 2. Each diagram below represents a cross section of a long, straight, current-carrying wire with the current direction into the page. Which diagram best represents the magnetic field near the wire? A) A, В) В, C) C, D) D, E) no solution B) D) A) 3. Which statement is well defined and correct ? A) 5 m is less than 10 kg, D) 5 m² is less then 10 m, E) 5 kHz is less than 10 MHz B) 5 cm is less than 10 mm, C) 5 mg is less than 10 ug, 4. Symbol p in the Physics formula p=mv represents: B) power, A) momentum, E) dipole moment. C) phosphorus, D) pressure, 5. The volume of an ideal gas is increased from 10m' to 20m while maintaining a constant pressure of 1000 Pa (1 Pa =1 N/m²). How much work is done by the gas in this expansion? A) 3kJ B) 7kJ C) 10kJ D) 200kJ E) No solution 6. Symbol fin the Physics formula 1/o + 1/i = 1/f represents: A) net force, B) fluid pressure, C) frequency, D) friction, E) focal length, 7. What does the symbol c mean in the Physics formula: Q = cmAT ? A) speed of light, B) specific heat capacity, C) centripetal acceleration, D) conductivity, E) coulomb. 8. What is the weight of 70-g mass ( on the surface of the Earth)? A) 0.7 kN B) 0.07 g C) 7 N D) 700 N E) 0.7 N 9. An object has a weight of 18N when it is locates on the surface of the Earth. What would it weight (the gravitational force due to the Earth) be if the object tripled its distance from the center of the Earth by flying in a spacecraft? A) 1 N B) 2 N C) 3 N D) 6 N E) 1.8 kg 10. To stretch a spring a distance of 0.2 m, 40 J of work is done. What is the value of the spring. constant k of the spring. A) 2 kN / m B) 8m J C) 0.005 m' kg's D) 200 newtons E) No solution 11. Ten coulombs of positive charge flow from the +9 V positive terminal of a battery to the negative terminal at +3 V. What is the change in potential energy of the charge? A) 90 J B) 30 J C) 60 J D) -60 J E) No solution 12. A 10-2 resistor has a voltage difference of 2 V across its leads. What is the power being dissipated in this resistor? A) 0.4W B) 20W C) 0.2W 13. What is frequency of a sound wave with a wavelength of 0.34 m traveling in room-te D) 40W E) No solutio
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