A wire with a mass of 1.00 g/cm is placed on a horizontalsurface with a coefficient of friction of 0.200. The wire carriesa current of 1.50 A eastward and moves horizontally tothe north. What are the magnitude and the direction of thesmallest vertical magnetic field that enables the wire to movein this fashion?

Q: A powerful bolt of lightning can carry a current of225 kA. (a) Treating a lightning bolt as a long,…

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Q: A current I = 15 A is directed along the positive x - axisand perpendicular to a magnetic field. A…

A: Magnetic force is,

Q: A proton moves perpendicularly to a uniform magnetic field at 3.0 ✕ 107 m/s and exhibits an…

A: The magnetic force acting on a charged particle in motion can be given by F=qv×B The force acting on…

Q: A long, rigid wire lying along the y-axis carries 12.3A current, flowing in the positive…

A: Given that, Current, I = 12.3 A along positive y-direction Magnetic field, B = 14.2 T along positive…

Q: What is the magnitude force on a proton moving at 2.5x10^5 m/s in a magnetic field 0.5T. If the…

A: Write the given values with the suitable variables. v=2.5×105 m/sB=0.5 Tq=1.6×10-19 C Here, v is the…

Q: A positively charged particle moves northward with constant velocity v in a uniform magnetic field…

A: we have read in electromagnetic wave  E / B = V E = V B particle velocity is in northward side and…

Q: Near the equator, the Earth’s magnetic field points almost horizontally to the north and has…

A: B = 0.50 x 10-4 T m = 9.1 x 10-31 kg  q = 1.6 x 10-19 C

Q: A 0.150-m wire oriented horizontally between the poles of an electromagnet carries a direct current…

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Q: Suppose a positive charge with a magnitude of 10 nC is isolated in the laboratory. If it is given a…

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Q: A particle with a charge of 0.04 C is moving at right angles to a uniform magnetic field with a…

A: The charge on the particle, q is 0.04 C. The magnetic field strength, B is 0.8 T. The velocity of…

Q: A lightning bolt may carry a current of 1.00  104 A for a short time. What is the resulting magnetic…

A: The given values are,

Q: A charged particle traveling with a velocity, v = 10Oi + 10j + 10k m/s, enters a region of constant…

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Q: Assume that a lightning bolt can be represented by a long straight line of current. If 15.0 C of…

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Q: Consider a uniform 0.673-T magnetic field pointing north and an electron traveling at 57.0 m/s in a…

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Q: At the equator, near the surface of the Earth, the magnetic field is approximately 50.0 μT…

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Q: A wire of length 50 cm and mass of 12 g is suspended in a horizontal plane by a pair of flexible…

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Q: At the equator, near the surface of the Earth, the mag- netic field is approximately 50.0 µT…

A: Given The magnetic field of the earth is ME=50 μT=50×10-6 T. The electric field of earth is EE=100…

Q: A horizontal overhead power line carries a current of 90 A in east to west direction. What is the…

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Q: A high-voltage power line carries a current of 110 A at a locationwhere the Earth’s magnetic field…

A: The magnitude of Earth's magnetic field is 0.59 G. B=0.59 G10-4 T1 G=0.59×10-4 T   The direction of…

Q: What is the magnitude and direction of the force on a proton 7 Mm/s traveling horizontally to the…

A: Given value--- speed = 7 Mm/s , east . magnetic field = 0.55 T , upward . We have to find--- What…

Q: What is the magnitude of the force and acceleration of an electron that moves at a speed of 5 x 10…

A: Given data :- speed v = 5 × 106 m/smagnetic field B = 0.40 Tcharge on electron q =e = 1.6 × 10-19…

Q: At what distance (in mm) from a long, straight wire carrying a current of 22 A will the magnitude of…

A: Given: The current is I=22 A. The magnetic field is B=2.6 mT.   The expression to calculate the…

Q: A wire having a mass per unit length of 0.500 g/cm carries a2.00 - A current horizontally to the…

A: Given:Mass per unit length (m/L) = 0.5 g/cm.Current in wire towards south direction (I) = 2 A.

Q: The magnetic field created by a current in a long straight wire is B = 3.92 μT at a distance of r =…

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Q: A charge Q =138 nC moves with a speed of 225 km/s along the +y-axis. It enters a region where there…

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Q: At a certain location in the Philippines, Earth’s magnetic field of 39 mT is horizontal and directed…

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Q: If the magnitude of the electric field is 400 N/C, what strength of a magnetic field would be…

A: Given: strength of electric field, E = 400 N/C            velocity of electron, v = 40000 m/s Let…

Q: The figure shows, in cross section, four thin wires that are parallel, straight, and very long. They…

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Q: Determine the magnitude of the force on an electron traveling 6.95×105 m/s horizontally to the east…

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Q: A proton high above the equator approaches the Earth moving straight downward with a speed of 375…

A: velocity, v = 375 m/s magnetic field, B = 4.05 x 10-5 T  Angle between velocity and magnetic field,…

Q: At what distance (in mm) from a long, straight wire carrying a current of 25 A will the magnitude of…

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Q: An electron traveling due North with speed 4 x 20 m/s enters a region where the earth's magnetic…

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Q: As shown in the figure below, when a charged particle enters a region of magnetic field traveling in…

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Q: At the equator, near the surface of the Earth, the magnetic field is approximately 50.0 μT…

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Q: A 0.82 -m copper rod with a mass of 0.043 kg carries a current of15 A in the positive x direction.…

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Q: A particle with a charge of 0.06 C is moving at right angles to a uniform magnetic field with a…

A: The magnetic force F→ on a particle of charge q moving with velocity v→, due to a magnetic field B→…

Q: What is the magnitude and direction of the force on a proton 9 Mm/s traveling horizontally to the…

A: We know           F= q( v x B)       < angle b/w v and B is 900 >  Back lines are…

Q: In what direction are the magnetic field lines surroundinga straight wire carrying a current that is…

A: The magnetic field of an circular wire is calculated by the given formula. B=μ0×I2πr Here, I is the…

Q: At what distance (in mm) from a long, straight wire carrying a current of 20 A will the magnitude of…

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Q: Experiments have shownthat thought processes in the brain can be affected if the parietallobe is…

A: Given data: Strength of magnetic field is, B=1.0 T. Distance is, r=0.50 m.

Q: In a lightning bolt, 15 C of charge flows in a time of 1.5x10 -3 s. Assuming that the lightning bolt…

A: The given data are listed below with suitable variables. Here, q denotes the charge, t denotes the…

Q: B N S At which point the magnitude of the magnetic field strenath of the

A: The given figure on the problem represent the bar magnet having magnetic field lines around it.

Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.