29. A long straight wire carrying a large current I lies in the N-S direction as shown in the diagram. A compass P is placed above the wire, and another compass Q is below the wire. Compass P to Compass Q In which direction will the compasses P and Q point? A. Compass P = North, Compass Q = South B. Compass P = South, Compass Q = North C. Compass P = West, Compass Q = East D. Compass P = East, Compass Q = West %3D %3D %3D

29. A long straight wire carrying a large current I lies in the N-S direction as shown in the diagram. A compass P is placed above the wire, and another compass Q is below the wire. Compass P to Compass Q In which direction will the compasses P and Q point? A. Compass P = North, Compass Q = South B. Compass P = South, Compass Q = North C. Compass P = West, Compass Q = East D. Compass P = East, Compass Q = West %3D %3D %3D

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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3. The thin, uniform rod shown below has negligible mass and and a length of 0.200 m. It is attached to the floor by a frictionless hinge at point P. A horizontal spring with force constant k = 4.80 N/m connects the other end of the rod to a vertical wall. The rod is in a uniform magnetic field of B = 0.340 T directed into the plane of the page. There is a current of /= 6.50 A in the rod, as shown. a. Calculate the torque due to the magnetic force on the rod for an axis at point P. Do this by defining a differential magnetic force on the rod for a differential length dr at an arbitrary distance r from point P. Relate this differential magnetic force to its differential torque at point P. Then sum (i.e., integrate) the contributions from the entire length of the rod to get the total torque on the rod. b. Consider Hooke's Law, which states that the force exerted by the spring when stretched or compressed a length x is Fspring = kx. Now, given that the rod makes an angle of 53.0° with the…
5. A solenoid has 500 turns, radius = 4 cm. and length = 16 cm, carries a current of 25 amps. What is the magnetic field inside the solenoid? What is the total flux inside the solenoid?
10. Two long, straight wires are separated by distance, d = 19.0 cm. The wires carry currents of I = 7.00 A and I2 = 8.50 A in opposite directions, as shown in the figure. Find the magnitude of the net magnetic field at point (B). Let r1 13.0 cm, r2 = 8.00 cm, and r3 = 13.0 cm. T.
4. A 75-turn circular loop carries a current of 6.3 kA and produces a magnetic field of magnitude 1.3 T at its center. What is the approximate diameter of this loop? 7.3 cm 15 cm (a) (b) (c) (d) 23 cm 46 cm
Note: The problems and reading are a continuation of reading on Magnetic Fields. Show all your work to arrive at a formulation for problems if necessary. A complete formulation without having to substitute numbers is sufficient as an answer.
1. As shown in the figure below, two long parallel wires (1 and 2) carry currents of I1 = 2.80 A and I2 = 5.45 A in the direction indicated. (a) Determine the magnitude and direction of the magnetic field at a point midway between the wires (d = 10.0 cm). Correct Answer: Magnitude = 10.6 µT. Direction = 90° counterclockwise from the +x-axis (b) Determine the magnitude (in µT) and direction (in ° counterclockwise from the +x-axis) of the magnetic field at point P, located d = 10.0 cm above wire 1. Could you please solve for part b.
A circular rigid conductor has a radius a and carries a stationary current I. If it is in a uniform magnetic field region pointing perpendicular to its plane with a strength B, the net magnetic force on the conductor due to the external magnetic field is Α. 2παΙΒ. B. 2/2παIB. C. (2/V2)aIB. D. 2/3IAB. Е. О.
5. DETAILS KATZPSEF1 30.P.059. MY NOTES ASK YOUR TEACHER A current of 5.52 A flows along a wire with é = (1.382 i – 2.095 ĵ) m. The wire resides in a uniform magnetic field B = (-0.260 ĵ + 0.850 k) T. What is the magnetic force acting on the wire? (Express your answer in vector form.) FB = N
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3. A zero-resistance rod of length 14.4 cm is being pushed along zero-resistance wires in a region where a uniform magnetic field of strength 2.00 T is directed out of the page as shown. If the wires and rod complete a circuit through a 2.90 N resistor then what velocity will the rod maintain if it is subjected to a constant pushing force of 22.0 N? Zero-resistance wires Push