VA

Q: 20 cm portion of a wire carries a current of 4A east in a space where the magnetic field is 0.2 T…

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Q: d) The ferromagnetic substances are those in which interactions between atoms cause magnetic moments…

A: Solution: (d) According to the domain theory in ferromagnetic materials, neighbouring atoms of the…

Q: A uniform magnetic field B exerts a force F on a particle with charge q moving with velocity v at…

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Q: Magnetic field exists in a region of space if a moving charge there experiences a force due to its…

A: F =qvBsinθ

Q: What is the initial direction of the deflection of the charged particle as it enters the magnetic…

A: What is the direction of the deflection of the charged particle.

Q: The electron in the following figure is at a speed of 22 m/s through a magnetic field with a…

A: Given: The speed of the electron is 22 m/s. The strength of the magnetic field is 1 T.

Q: A proton, traveling with a velocity of 5.9 x 106 m/s due east, experiences a magnetic force that has…

A: Velocity of proton in east direction, v = 5.9 x 106 m/sProton charge, q = 1.6 x 10-19 CForce…

Q: The diagram below represents the magnetic lines of force around a bar magnet. At which point is the…

A: Since point A is near the bar magnet converging point.

Q: A negative charge moves in a magnetic field in each of the following figures. Determine and draw the…

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Q: What happens to the direction of the magnetic field generated by an electromagnet if the direction…

A: What happens to the direction of the magnetic field generated by an electromagnet if the direction…

Q: When a bar magnet is suspended freely its south pole always point to O a. geographic north O b.…

A: The basic properties of the magnet is that like poles repel each other and unlike poles attract each…

Q: II. The planet earth has a magnetic field, B = (415 mT)j - (114 mT)k. a) A wire of mass 22 g and 25…

A: Given the magnetic field of the earth, B→=415 mT j - 114 mT k              (1) The force on a…

Q: A student read from his physics book that a piece of soft iron placed in a uniform magnetic field…

A: When a soft iron  is placed in the magnetic field , it also becomes a magnet.

Q: a. is a force between two objects (or surface) that is in contact with one another. is an attractive…

A: As per guidelines , only 3 sub-parts are solved here. 1.a) The force which is acted between two…

Q: A wire having mass per unit length of 0.425 g/cm carries a 2.34 A current horizontally to the south.…

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Q: An electron and a proton are each moving at 780 km/s in perpendicular paths as shown in (Figure 1).…

A: Given Velocity of electron and proton (v)     = 780 km/s Position vector point of electron re = 5.00…

Q: positively charged particle moving due east enters a magnetic field directed due south. Which of…

A: magnetic force F̅=q(v̅×B̅)

Q: electron is moving WEST in a region where the magnetic field is directed from NORTH to SOUTH. The…

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Q: A positively charged particle moving upwards enters a magnetic field directed due east. Which of…

A: Right Hand Rule-1 : Point your thumb of right hand in direction of motion of positively charge…

Q: Find the direction of the magnetic field acting on the positively charged particle moving in the…

A: Given that - Durection of force and positively charge particle movement and we have to find out the…

Q: 3. Two wires are carrying currents in the same direction as shown in the diagram below. The two…

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Q: B. An electron is moving through a magnetic field in a direction perpendicular to the field as shown…

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Q: An electron is moving to the right in a uniform magnetic field which is pointed into the page. What…

A: The magnetic force on a free moving charge is perpendicular to both the velocity of the charge and…

Q: What is meaning of “No magnetic force exists on a moving charged particle” a. no magnetic field…

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Q: What is the magnitude of magnetic field at point P, located at x = 0.400 m, y = 0.300 m?

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Q: What is the direction of a magnetic field if an electron is moving in a circular  clockwise…

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Q: wo bar magnets are placed end to end, with opposite poles near each other. A compass is placed in…

A: The compass points in the direction of the nearest south pole of the magnet that is in the direction…

Q: According to the Right Hand Thumb rule if the current is in the direction of the thumb of your right…

A: The fingers curl in the direction of the field. is the suitable answer

Q: Permanent magnets and electromagnets are different. The poles of an electromagnet can be altered…

A: Permanent magnet A permanent magnet is an object build  from a material that is magnetized and…

Q: You have discovered a new app on your cell phone that can measure the magnetic field. As you are…

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Q: A wire is carrying a current vertically upward. What is the direction of the force on this wire due…

A: Expression for magnetic force is,

Q: 8. An electron is moving through a magnetic field in a direction perpendicular to the field as shown…

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Q: In the diagram an electron is in motion but the direction is to be determined. The force on the…

A: The magnetic field lines origin from the north pole and end at the south pole. So,here the field is…

Q: A magnetic force is exerted only if the particle is moving.    A. True B. False

A: We need to tell whether the statement is True or False.

Q: A NEGATIVE charge moving with a constant velocity of magnitude v enters a region of a uniform…

A: A negative charge moving with a constant velocity of magnitude v enters a region of a uniform…

Q: What is the direction of the magnetic force exerted on a proton moving in positive X- direction…

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Q: The long, thin wire shown below is in a region of constant magnitude field B. The wire carries a…

A: Given data:  Current (I) = 6.2 A Angle (θ) = 7.5° Length (L) = 1 m Force (F) = 3.1 × 10-2 N…

Q: Imagine a straight wire that is perpendicular to this page. If a current flows in the wire in a…

A: Given that the current is flowing out of the page: We need to find the direction of the magnetic…

Q: Which of the following statements is TRUE about mapping magnetic field lines around a bar magnet…

A: Required: Correct statement

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.

Bar Magnet

In physics, magnetism is a phenomenon exhibited by a magnetic substance that exerts either attractive or repulsive force. A bar magnet is either a rectangular or round and hollow fit comprised of ferromagnetic materials and has a fanciful attractive field surrounded by it.