5 and 6 only 8attery4.Explain why the magnetic field around the E-mag shown is incorrect.BatteryWhich two answer choices correctly explains how an electromagnet and a bar magnet are similar?Both E-mags and bar magnets have an iron core.Both E-mags' and bar magnets' magnetic fields are strongest at the poles.Both E-mags' and bar magnets' opposite poles repel each otherBoth E-mags' and bar magnets' electrical charges flow north to south.Both E-mags and bar magnets have the ability to turn on/off.Both E-mags and bar magnets have the ability to be strengthened easily.Explain why a compass needle would be attracted to a wire with flowing electricity?5.a.b.C.d.e.f.6.BatterysseduonSwitchAch

Questions based on magnetic field concept

gnetic field around the E-mag shown is incorrect. choices correctly explains how an electromagnet and a bar magnet are similar? d bar magnets have an iron core. id bar magnets' magnetic fields are strongest at the poles. id bar magnets' opposite poles repel each other d bar magnets' electrical charges flow north to south. d bar magnets have the ability to turn on/off. d bar magnets have the ability to be strengthened easily. Iss needle would be attracted to a wire with flowing electricity? Compass

gnetic field around the E-mag shown is incorrect. choices correctly explains how an electromagnet and a bar magnet are similar? d bar magnets have an iron core. id bar magnets' magnetic fields are strongest at the poles. id bar magnets' opposite poles repel each other d bar magnets' electrical charges flow north to south. d bar magnets have the ability to turn on/off. d bar magnets have the ability to be strengthened easily. Iss needle would be attracted to a wire with flowing electricity? Compass

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter30: Sources Of The Magnetic Field

Section: Chapter Questions

Problem 30.5OQ: Two long, straight wires cross each other at a right angle, and each carries the same current I...

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Similar questions

Neurons in our bodies carry weak currents that produce detectable magnetic fields. A technique called magnetoencephalography, or MEG, is used to study electrical activity in the brain using this concept This technique is capable of detecting magnetic fields as weak as 1.0 1015 T. Model the neuron as a long wire carrying a current and find the current it must carry to produce a field of this magnitude at a distance of 4.0 cm from the neuron.
(a) A DC power line for a light-rail system carries 1000 A at an angle of 30.0° to the Earth’s 5.00105-T field. What is the force on a 100-m section of this line? (b) Discuss practical concerns this presents, if any.
(a) A physicist performing a sensitive measurement wants to limit the magnetic force on a moving charge in her equipment to less than 1.001012N. What is the greatest the charge can be if it moves at a maximum speed of 30.0 m/s in the Earth’s field? (b) Discuss whether it would be difficult to limit the charge to less than the value found in (a) by competing it with typical static electricity and noting that static is often absent.
A laboratory electromagnet produces a magnetic field of magnitude 1.50 T. A proton moves through this field with a speed of 6.00 106 m/s. (a) Find the magnitude of the maximum magnetic force that could be exerted on the proton. (b) What is the magnitude of the maximum acceleration of the proton? (c) Would the field exert the same magnetic force on an electron moving through the field with the same speed? (d) Would the electron undergo the same acceleration? Explain.
The Earths Van Allen belts (Fig. 30.34) are a natural magnetic bottle, trapping cosmic rays that spiral back and forth between the North and South Poles. Use the shape of a cosmic rays path to describe the variation in the magnetic field strength.
(a) A physicist performing a sensitive measurement wants to limit the magnetic force on a moving charge in her equipment to less than 1.001012N. What is the greatest the charge can be if it moves at a maximum speed of 30.0 m/s in Earth's field? (b) Discuss whether it would be difficult to limit the charge to less than the value found in (a) by comparing it with typical static electricity' and noting that static is often absent,
An electron moving at 4.00103 m/s in a 1.25-T magnetic field experiences a magnetic force of 1.401016 N. What angle does the velocity of the electron make with the magnetic field? There are two answers.
A Hall probe gives a reading of 1.5V for a current of 2 A when it is placed in a magnetic field of 1 T, What is tire magnetic field in a region where tire reading is 2V for 1.7 A of current?
A laboratory electromagnet produces a magnetic field of magnitude 1.50 T. A proton moves through this field with a speed of 6.00 106 m/s. (a) Find the magnitude of the maximum magnetic force that could he exerted on the proton. (b) What is the magnitude of the maximum acceleration of the proton? (c) Would the field exert the same magnetic force on an electron moving through the field with the same speed? (d) Would the electron experience the same acceleration? Explain.
(a) A 0.750-m-long section of cable carrying current to a car starter motor makes an angle of GOP with Earth's 5.5105T field. What is the current when tire wire experiences a farce of 7.010N? (b) If you run the wire between the poles of a strong horseshoe magnet, subjecting 5.00 cm of it to a 1.75-T field, what force is exerted on this segment of wire?
(a) What is the speed of a supersonic aircraft with a 17.0-m wingspan, if it experiences a 1.60V Hall voltage between its wing lips when in level flight over the north magnetic pole, where the Earth's field strength is 8.00105T ? (b) Explain why very little current flows as a result of this Hall voltage.
Unreasonable Results (a) Find the charge on a baseball, thrown at 35.0 m/s perpendicular to the Earth’s 5.00105T field, that experiences a 1.00-N magnetic force. (b) What is unreasonable about this result? (c) Which assumption or premise is responsible?