A device that based on the magnetic force that is acting on a current-carrying wire or coil is a(n). a. generator. b. commutator. c. electric motor. d. transformer.
Q: A solenoid that is 115 cm long has a radius of 1.86 cm and a winding of 1310 turns; it carries a…
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Q: A bar magnet is dropped toward a conducting ring lying on the floor. As the magnet falls toward the…
A: When a conductor is subjected to a varying magnetic field the change in magnetic flux will induce an…
Q: 5. An electron travels at 2.0 x 107 m/s in a plane perpendicular to a 0.010 T magnetic field.…
A: Given data: The speed of the electron is v=2.0×107 m/s The magnetic field isB=0.010 T
Q: Streams of charged particles emitted from the sun during periods of solar activity create a…
A: As we all know the current is created by moving charge particles and magnetic field is produced by…
Q: Two current-carrying wires are arranged such that the net force between the two wires is attractive.…
A: Ques: Two current-carrying wires are arranged such that the net force between the two wires is…
Q: 4) Two long parallel wires carry currents 3 amps and 5 amps both in the same direction out of the…
A: The given values are,
Q: 2. You have a solenoid that is 40 cm long and with 350 turns and want to produce a magnetic field…
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Q: Explain how a magnet can pick up an object even though the magnetic field cannot do work on the…
A: Work is defined as the transfer of energy that occurs when a force is applied to move an object over…
Q: An electron moves at a velocity of 1.83 x 10^6 m/s in a direction perpendicular to a magnetic field…
A: Data we have velocity,v= 1.83 x 10^6 m/s Magnetic field, B= 3.95 T charge on the…
Q: A permanent magnet has magnetic field lines as shown below. A wire carries a current vertically…
A: Required : Direction of the magnetic force on the wire.
Q: presence magnetic field into the page, as shown. A 4-ohm resistor is connected into the circuit. 4Ω…
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Q: In an MRI machine, a large magnetic field is generated by the cylindrical solenoid surrounding the…
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Q: A proton travels at 2.0x107 m / s in a plane perpendicular to a uniform magnetic field of 2.5 T, as…
A: We have to use some basic formula here.
Q: An engineer is investigating potential energy with two identical magnetic roller coaster cars on…
A: Given: Two magnetic cars placed on different sides of center magnet which cannot move. Let car 1…
Q: a) A DC power line for a light-rail system carries 950 A at an angle of 29.9" to the Earth's 4.96…
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Q: 35. An aluminum airplane is flying west, parallel to the ground, at 350 m/s. The Earth's magnetic…
A: The velocity of the plane, (towards west)The magnitude of the downward component of the Earth's…
Q: A proton enters a magnetic field rated at 0.60 T and is deflected as shown below. Determine the…
A: The magnetic field is given as, B = 0.60 T Radius of the magnetic field is given as, r = 0.03 m Mass…
Q: 23. A 1000-kg car moves west along the equator. At this location Earth's magnetic field is 3.5 ×…
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Q: A proton moves in a circular path perpendicular to a uniform magnetic field of 0.85 T. Find the time…
A: The force acting on the proton can be written as FC=FBmv2r=qvBsinθ…
Q: 7. A conducting rod whose length is e= 1.60 m is placed on frictionless U-shaped metal rails that is…
A: force on conducting rod moving in U shaped conducting rails separated by dome distance in uniform…
Q: Which of the following statements are true? Magnetic charges within a magnet are constantly…
A: Magnetic charges within a magnet are constantly moving. False There is no term like magnetic…
Q: Please help me answer this question. When a straight wire carrying a current is placed in a uniform…
A: Option D is correct. When a current carrying wire is placed in a magnetic field which is parallel to…
Q: 15. A solenoid that is 72 cm long produces a magnetic field of 1.8 T within its core when it carries…
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Q: True/False and why? A positive charge moves between the poles of a horseshoe magnet. The charge…
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Q: A long solenoid that has 1,150 turns uniformly distributed over a length of 0.450 m produces a…
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Q: All current-carrying wires along the surface of the Earth lie in the magnetic field of the Earth.…
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- A loop that is shaped as a triangle Carries a current I=3A . The triangle loop sits on a magnetic uniform electric feild of magnitude B=30mT, as shown in the image. What is the net magnetic force experienced by the loop? The options below have units mN. a.130. B. 54. C.47. D.27. E.0How to use a battery and loops of conductors to behave exactly like a bar magnet. Please give a good explanation. ThanksIf you were standing directly at the earth’s north magnetic pole, in what direction would a compass point if it were free to swivel in any direction? Explain.
- 37 (a) A dc power line for a light-rail system carries 1000 A at an angle of 30.0º to Earth's 5.0×10−5T field. What is the force on a 100-m section of this line? (b) Discuss practical concerns this presents, if any.8.) The Earth's magnetic poles remain in fixed positions, coinciding with the geographic poles. a. True b. FalseNeeds to say which direction. The question requires direction: left, right, up, down, in, out, or in-between those.
- 20. FIGURE below shows a zero-resistance rod sliding to the right on two zero-resistance rails separated by the distance L= 0.500 m. The rails are connected by a 10.0-0 resistor, and the entire system is in a uniform magnetic field with a magnitude of 0.750 T. (a) Find the speed at which the bar must be moved to produce a current of 0.175 A in the resistor. (b) Would your answer to part (a) change if the bar was moving to the left instead of to the right? Explain. Chap 23 #37 R5. A search coil consisting of N turns of wire in a circle of radius r is used to measure small magnetic fields. It is to be designed so that flipping it 180 degrees in a field of B=2.0 Gauss causes a total charge of Q = 1x10-7 C to pass through a ballistic galvanometer. (a) Suppose that the coil has a resistance N Ro where Ro is the resistance in one turn of wire. Using the fact that & = -do/dt, show that while the current in the coil depends on the speed with which it is rotated, the total charge Q passing through coil from start to finish does not. (b) If the resistivity of the wire is 8x10-7 m and the diameter of the wire is 100 um, what should be the radius r of the coil? (Neglect the resistance of the galvanometer.) I Gaus. N turns Ballstic Galvenometen (measunee Q)1. (7¹) This problem has two subproblems. (a 3¹) Sketch magnetic field lines inside and outse in the following horse-shoe magnet. You must have arrows on your lines. First, you need to write down in words that your answers are, and second, you draw those lines in your scratch paper. N S (b 4') An electron travels at a speed of 1 x 105 m/s, with its direction perpendicular to a magnetic field. The field provokes the electron to move in a circular path of radius 0.5 µm. What is the field strength, in tesla? The mass of the electron is 9.11 x 10-31 kg. e = 1.602 x 10-19 C.
- 23. A 1000-kg car moves west along the equa- tor. At this location Earth's magnetic field is 3.5 × 10-5T and points north parallel to Earth's surface. If the car carries a charge of −2.0 × 10¯³ C, how fast must it move so that -3 the magnetic force balances 0.010% of Earth's gravitational force exerted on the car?49. There is a uniform magnetic field of 0.50 T directed along the positive y-axis. (A) Determine the force exerted on a 4.0-A current in a 3.0-m long wire heading along the negative z-axis. (B) Determine the force on a 200-µC charge moving 60 km/s at an angle of 30° below the +x-axis. (C) In which direction(s) could a proton travel and experience zero magnetic force?A electric motor has a current running through it and it is rotating counterclockwise in an external magnetic field. What happens to the motor if the current reverses direction? Why?