7. Recall the motor principle. In what three ways can the magnetic force be increased?
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Q: 1. Find the force between two parallel currents of 5 A and 10 A, each two meters long with distance…
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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: 12. The dipole moment associated with an atom of iron in an iron bar is 1.8 x 10-23 amp-m?. Assume…
A: Given, The dipole moment of one atom is μo=1.8×10-23A/m2 length of iron bar is L=5cm the…
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A: Data we have velocity,v= 1.83 x 10^6 m/s Magnetic field, B= 3.95 T charge on the…
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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: 10. Explain the concept of magnetic drag on a sheet of metal as it swings in the presence of a…
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Q: . Argue, conceptually, that the magnetic field does not change the speed of a particle. 2. An…
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Q: chanically. video Pendulum Magnetic Braking found uminum per um is initiall
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Q: Two long parallel wires, each carrying a current of 4 A, lie a distance of 10 cm from each other.…
A: Let us consider Two long parallel wires, each carrying a current (I1) & (I2) respectively.…
Q: .An 8-m long high-tension power line carries a current of 17.5A perpendicular to the earth's…
A: Given data: Length (L) = 8 m Current (I) = 17.5 A Angle (θ) = 90° Magnetic field (B) = 5.5×10-5 T…
Q: 8.) The Earth's magnetic poles remain in fixed positions, coinciding with the geographic poles. a.…
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Q: 8. An ideal solenoid having 200 turns and carrying a current of 2.0 A is 25 cm long. What is the…
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Q: . Two protons move parallel to the x-axis in opposite directions at the same speed v (small compared…
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Q: 5. A search coil consisting of N turns of wire in a circle of radius r is used to measure small…
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Q: 1. An electron enters a region of uniform magnetic field B = 0.05T (coming out of the page) with the…
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Q: An unknown particle (m=1.23x10 26kg) with 5 electrons in deficit enters a region between two…
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- 1.) When a particle moves under the influence of a magnetic field, the speed of the particle remains constant. Explain why the magnetic force doesn’t change the speed. Why does this also imply that magnetic fields cannot do work?3. A proton moving eastward with a velocity of 5.0 km/s enters a magnetic field of 0.20 T pointing northward. What are the magnitude and direction of the force that the magnetic field exerts on the proton? (qe=+1.60 × 10-19 C)QUESTION 13 What angle does the net magnetic field make with +X axis? O a.0 degrees O b. 30 degrees O c. 45 degrees d. 90 degrees O e. None of these 10 A 20 A
- 6. Green turtles use the earth’s magnetic field to navigate. They seem to use the field to tell them their latitude—how far north or south of the equator they are. Explain how knowing the direction of the earth’s field could give this information.4. Some pacemakers employ magnetic reed switches to enable doctors to change their mode of operation without surgery. A typical reed switch can be switched from one position to another with a magnetic field of 50 10 4 . × . − T What current must a wire carry if it is to produce a 5 0 10 4 . × − T field at a distance of 0.50 m?A permanent magnet has field lines as shown below. An electron moves out of the screen toward you at point A. The direction of the magnetic force on the electron is best represented by D 2. 3. 4. 5. 6. zero none of these O 1. O 2. О з. O 5. O 6. 4.
- 2.How would you orient two long, straight, current carrying wires so that there is no net magnetic force between them?A 10 m long solenoid contains 284 turns of wire and can generate a magnetic field of 0.01 T from a current of 2.8 A. If the solenoid is broken in half, the field would be expected to... A )Stay the same B Double C)Quarter D) Halve8. An electron moves at a velocity of 7.24 x 10^6 m/s in a direction perpendicular to a magnetic field of strength 3.77 T. How much force will the electron experience? : 3.06E-12 N 6.12E-12 N 7.43E-12 N 4.37E-12 N