College Physics: A Strategic Approach (3rd Edition)
3rd Edition
ISBN: 9780321879721
Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher: PEARSON
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Chapter 24, Problem 24CQ
To determine
The direction of force of a current carrying wire.
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Chapter 24 Solutions
College Physics: A Strategic Approach (3rd Edition)
Ch. 24 - In Figure Q24.1, suppose the magnet on the right...Ch. 24 - You have a bar magnet whose poles are not marked....Ch. 24 - When you are in the southern hemisphere, does a...Ch. 24 - If you were standing directly at the earths north...Ch. 24 - If you took a sample of magnetotactic bacteria...Ch. 24 - Green turtles use the earths magnetic field to...Ch. 24 - Prob. 7CQCh. 24 - Prob. 8CQCh. 24 - Prob. 9CQCh. 24 - As shown in Figure Q24.10, a uniform magnetic...
Ch. 24 - Prob. 11CQCh. 24 - An electron is moving in a circular orbit in a...Ch. 24 - Prob. 13CQCh. 24 - One long solenoid is placed inside another...Ch. 24 - Prob. 15CQCh. 24 - Prob. 16CQCh. 24 - Prob. 17CQCh. 24 - Prob. 18CQCh. 24 - An electron is moving near a long,...Ch. 24 - Two positive charges are moving in a uniform...Ch. 24 - An electron is moving in a circular orbit in the...Ch. 24 - An electron and a proton are moving in circular...Ch. 24 - A proton moves in a region of uniform magnetic...Ch. 24 - Prob. 24CQCh. 24 - Prob. 25CQCh. 24 - A long wire and a square loop lie in the plane of...Ch. 24 - A solenoid carries a current that produces a field...Ch. 24 - An unmagnetized metal sphere hangs by a thread....Ch. 24 - If a compass is placed above a current-carrying...Ch. 24 - Prob. 31MCQCh. 24 - Figure Q24.32 shows four particles moving to the...Ch. 24 - Four particles of identical charge and mass enter...Ch. 24 - If all of the particles shown in Figure Q24.33 are...Ch. 24 - If two compasses are brought near enough to each...Ch. 24 - Table 24.1 notes that the magnetic field 10 cm...Ch. 24 - Use the data from Table 24.1 to determine at what...Ch. 24 - The magnetic field at the center of a...Ch. 24 - For a particular scientific experiment, it is...Ch. 24 - Prob. 5PCh. 24 - An investigator places a sample 1.0 cm from a wire...Ch. 24 - Although the evidence is weak, there has been...Ch. 24 - Some consumer groups urge pregnant women not to...Ch. 24 - A long wire carrying a 5.0 A current perpendicular...Ch. 24 - The element niobium, which is a metal, is a...Ch. 24 - The small currents in axons corresponding to nerve...Ch. 24 - A solenoid used to produce magnetic fields for...Ch. 24 - Two concentric current loops lie in the same...Ch. 24 - The magnetic field of the brain has been measured...Ch. 24 - Prob. 16PCh. 24 - What is the magnetic field at the center of the...Ch. 24 - Experimental tests have shown that hammerhead...Ch. 24 - Prob. 19PCh. 24 - You have a 1.0-m-long copper wire. You want to...Ch. 24 - In the Bohr model of the hydrogen atom, the...Ch. 24 - A proton moves with a speed of 1.0 107 m/s in the...Ch. 24 - An electron moves with a speed of 1.0 107 m/s in...Ch. 24 - An electromagnetic flowmeter applies a magnetic...Ch. 24 - The aurora is caused when electrons and protons,...Ch. 24 - Problem 24.25 describes two particles that orbit...Ch. 24 - Prob. 27PCh. 24 - Charged particles orbit magnetic field lines in...Ch. 24 - The microwaves in a microwave oven are produced in...Ch. 24 - A cyclotron is used to produce a beam of...Ch. 24 - A medical cyclotron used in the production of...Ch. 24 - Early black-and-white television sets used an...Ch. 24 - Prob. 33PCh. 24 - Prob. 34PCh. 24 - Prob. 35PCh. 24 - A uniform 2.5 T magnetic field points to the...Ch. 24 - Prob. 37PCh. 24 - A current loop in a motor has an area of 0.85 cm2....Ch. 24 - A square current loop 5.0 cm on each side carries...Ch. 24 - People have proposed driving motors with the...Ch. 24 - a. What is the magnitude of the torque on the...Ch. 24 - Prob. 42PCh. 24 - A solenoid is near a piece of iron, as shown in...Ch. 24 - The right edge of the circuit in Figure P24.44...Ch. 24 - Prob. 45GPCh. 24 - An electron travels with speed 1.0 107 m/s...Ch. 24 - Prob. 47GPCh. 24 - A device called a railgun uses the magnetic force...Ch. 24 - Irrigation channels that require regular flow...Ch. 24 - Typical blood velocities in the coronary arteries...Ch. 24 - A power line consists of two wires, each carrying...Ch. 24 - Consider the long rectangular loop in Figure...Ch. 24 - Bats are capable of navigating using the earths...Ch. 24 - At the equator, the earths field is essentially...Ch. 24 - A 1.0-m-long, 1.0-mm-diaraeter copper wire carries...Ch. 24 - An insulated copper wire is wrapped around an iron...Ch. 24 - Assuming the particle in Figure P24.59 is...Ch. 24 - How does the kinetic energy of the particle in...Ch. 24 - Prob. 61MSPPCh. 24 - Next, a particle with the same mass and velocity...Ch. 24 - What is the direction of the magnetic force on a...Ch. 24 - What is the magnitude of the force on this ion? A....Ch. 24 - What magnitude electric field is necessary to...Ch. 24 - The electric field produces a potential...Ch. 24 - In the spectrometer shown in Figure P24.67, do the...Ch. 24 - The moving ions can be thought of as a current...Ch. 24 - Why is it important that the ions have a known...Ch. 24 - A mass spectrometer similar to the one in Figure...
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- A proton is moving near a long, current-carrying wire. When the proton is at the point shown, in which direction is the force on it?arrow_forwardAn electron is moving near a long, current-carrying wire, as shown. What is the direction of the magnetic force on the electron?arrow_forwardA wire has a current of 30 A going down the page. What is the B field and its direction 0.2 m to the right of the wire? What is the force and direction on an electron traveling 400 m/s up at this point?arrow_forward
- Consider a long, horizontal Large Wire with current of 10 A running through it. We want to levitate a horizontal, thin, 0.50 m length of wire above it. If the thin wire has a mass of 10 grams, and a current of 300 mA, how far above the Large Wire will it hover (net force of zero) due to magnetic and gravitational forces? A. If the thin wire hovers above the Large Wire due to their magnetic fields, are their currents going the same direction, or opposite directions. Explain. B. Draw a diagram and label the directions of currents, and all other relevant quantities and vectors. C. Find the distance above the Large Wire the small thin wire will hover (net force of zero). D. Would your answers to parts A and C change if we wanted to find a distance below (rather than above) the Large Wire that the smaller thin wire could hover, due to their magnetic fields. Explain. Don't calculate any values but draw a new diagram and explain how this situation compares to the problem above.arrow_forwardA long straight wire carries a 40.0 A current in the +x direction (Figure 6). At a particular instant, an electron moving at 1.0 × 107 m/s in the +y direction is 0.10 m from the wire. The charge on the electron is –1.6 × 10–19 C. What is the force on the electron at this instant?arrow_forwardA wire has a current of 145 A going to the left. What is the B field and direction 1.5 m to the right of the wire? What is the force and direction on a 2 uC charge traveling 50 m/s into the page at this point?arrow_forward
- A proton is traveling at an increasing velocity in the +X direction. What do we know about the E-field in this situation?arrow_forwardA negatively-charged particle travels parallel to magnetic field lines within a region of space. Which one of the following statements concerning the force exerted on the particle is true? Select one: a. The force is perpendicular to the direction in which the particle is moving. b. The force slows the particle. c.The force accelerates the particle. d.The force is directed perpendicular to the magnetic field. e. The force has a magnitude of zero newtons.arrow_forwardThe aurora is caused when electrons and protons, moving in the earth's magnetic field of =5.0x10-5 T, collide with molecules of the atmosphere and cause them to glow. Assume that the electrons and protons move in a plane perpendicular to the magnetic field. a. What is the radius of the circular orbit for an electron with speed 1.0x106 m/s? b. What is the radius of the circular orbit for a proton with speed 4.0×104 m/s? c. Determine the magnitude of the magnetic force on the electron and protonarrow_forward
- The magnetic field in the figure is decreasing at the rate 0.2 T/s. (Eigure 1) You may want to review (Pages 852-855). Figure 2.0 cm b I cm I cm I cm < 1 of 1 ▼ Part A What is the magnitude of the acceleration of a proton at rest at point a? Express your answer to two significant figures and include the appropriate units. a= Submit Part B LO Value Submit HA horizontally to the left upward horizontally to the right downward a=0 Request Answer What is the direction of the acceleration of a proton at rest at point a? Part C Previous Answers ✓ Correct Here we learn how to determine the direction of the acceleration of a proton at rest in a solenoid with a changing magnetic field. Units HA What is the magnitude of the acceleration of a proton at rest at point b? Express your answer as an integer and include the appropriate units. a= Value ? Submit Request Answer Units ?arrow_forwardCosmic rays are charged particles that originate from the sun and other stars outside our solar system. A slow-moving cosmic ray profon with charge 1.6 x 1019 C has a velocity of 4.0 x 10 m/s and travels perpendicular to Earth's magnetic fieid. Earth If the field strength is 3.0 x 10T at the allitude of the proton, then what will be the radius of the circular motion? The radius is m.arrow_forwardThere is a electrically neutral metal box. What will happen if the box moves in a B(magnetic) field?arrow_forward
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