A student is given two pieces of iron and told to determine if one or both of the pieces are magnets. First, the student touches an end of one piece to one end of the other. The two pieces of iron attract. Next, the student reverses one of the pieces and again touches the ends together. The two pieces attract again. What does the student definitely know about the initial magnetic properties of the two pieces of iron?

Q: An electron travels in the +x^+x^-direction in a magnetic field and is acted on by a magnetic force…

A: Direction of velocity = along +x axis force = along -y axis direction of magnetic field = ? b)…

Q: Two long parallel wires, each carrying a current of 12 A, lie at a distance of 22 cm from each…

A: Current flowing in both parallel wires (I) = 12 A Separation between the wires (d) = 22 cm…

Q: The magnetic field lines of a bar magnet (outside) are directed from _________ Select one: a. south…

A: Question-  magnetic field line  direction  ?

Q: A particle with a charge of -1.24 x 10-8 C moves with instantaneous velocity v (4.19 x 104 m/s)î +…

A: Given data,  Charge of the particle (q)=-1.24 x 10-8 C Instantaneous velocity(v)=(4.19 x 104 m/s)î +…

Q: The magnetic force due to a current-carrying wire is given by the equation, ?⃗ =?⃗ ?×?⃗…

A: Let current carried by a wire = I Let the magnetic field strength = B Let the length of the wire = L…

Q: What is the magnitude of the net magnetic field at the origin if each side of the cube is 0.1 m…

A: The direction of magnetic field due to a current carrying conductor can be find by right hand thumb…

Q: A particle orbits in a magnetic field with a radius of 1 m. If the mass of the particle isdoubled,…

A: radius, r = 1 m

Q: An electron moves at 3 x 10^8 cm/s as shown in the figure. Find the magnitude of the magnetic field…

A: Given that: v→=3×108 j^ cm/s=v→=3×106 j^ m/srA→=2(cos60°i^+sin60°j^) μm=(i^+1.73j^)×10-6…

Q: A 3.0-mm-long segment of wire carries a current of 3.0 A in the +x direction. It lies in a magnetic…

A: The magnetic force on a wire of length l carrying current I in a magnetic field B at an angle θ is

Q: Shown below is a very long wire intersecting the page perpendicularly at the point (2m, 0) and…

A:

Q: A horizontal wire carries a current to the North in a region of space where a magnetic field is…

A: Here we can use left hand rule.

Q: ) The magnetic force acting on a current in straight wire is always Zero if the current flows…

A:

Q: What is the magnetic force on a charge of -1.6 · 10-19 (C) that has a velocity equal to i = (-5 ·…

A:

Q: The two wires shown in the figure below are separated by d = 11.4 cm and carry currents of I = 4.95…

A:

Q: A magnet produces a 0.300 T field between its poles, directed to the east. A dust particle with…

A: Given, q= -3.9*10-18C B= 0.3 T v= 0.3cm/s= 3*10-3m/s

Q: A 5.9 m wire carries a current of 7.0 A toward the +x direction. A magnetic force of 4.8 × 10^−6 N…

A:

Q: An alpha particle (the nucleus of a helium atom), carrying a charge of 3.2 × 10^−19 C moves at 4.4 ×…

A: Charge on the particle, q=3.2×10-19 C Velocity of the particle, v=4.4×107 m/s Force on the particle,…

Q: Consider a charged particle moving with velocity v through a magnetic field B. The force F exerted…

A: The magnetic force FB on a charged particle of charge q, is orthogonal to both its velocity vand the…

Q: What is the magnitude of the magnetic field at a point midway between them if the top one carries a…

A:

Q: A magnesium-24 ion has a positive charge that is double the charge of a proton, and a mass of 3.98…

A: a) The required magnetic force is,

Q: A particle that has an 6.7-μC charge moves with a velocity of magnitude 5 × 105 m/s along the +x…

A:

Q: A 3.0-mm-long segment of wire carries a current of 3.0 A in the +x direction. It lies in a magnetic…

A:

Q: A charged particle, an electron or a proton (you have to decide which one), enters into a region of…

A: Given: mass of electron, me = 9.1 x 10-31 kg  mass of proton, mp = 1.67 x 10-27 kg  charge on proton…

Q: what would be the direction of the magnetic force if a proton is going along the y-axis in a region…

A: Given: The direction of the velocity of the proton is in the y-direction. The direction of the…

Q: A 3.0-mm-long segment of wire carries a current of 3.0 A in the +x direction. It lies in a magnetic…

A:

Q: A charged particle with speed v = the particle makes an angle of /3 rad with the magnetic field.…

A: Given data: Speed of the charged particle, v=3×105 m/s Magnetic field, B=1.5 T Angle made by the…

Q: Four free-particles with the same negative charge and the same initial speed are incident on the…

A: Magnetic Field is along -ve y-axis

Q: The minimum attraction will be at of the magnet. O a. both poles of the magnet O b. only north pole…

A:

Q: A particle with charge -5.90 nC is moving in a uniform magnetic field B= -(1.25)k. The magnetic…

A: F = q(v×B) F = q v B sinθ

Q: Find the force the magnetic field exerts on the particle

A:

Q: As shown in the picture below, you have a wire with current within a magnetic field. The wire is at…

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Q: The graphic shows the lines of magnetic field between two magnets. Consider a downward- moving…

A: Given, The direction of magnetic field is from right to left the direction of motion of the…

Q: A friend of yours who is physicist on earth have created the magnetic field shown. A rocket flies…

A: Fleming’s hand rule,  Where the thumb, index finger and the middle finger are right angle to each…

Q: An electron with a velocity of 3.00 x105 m/s is incident normal to the magnetic field lines between…

A:

Q: A point particle initially moving with constant velocity enters a region with constant magnetic…

A:

Q: solenoid with 1000 turns is 15 cm long and carries a current of 3.5 A. What strength of magnetic…

A: Given Number of turn = 1000 Length = 15 cm = 0.15 m Number of turn per unit length n = 1000/0.15 =…

Q: A negatively charged chlorine ion (CI) in seawater is floating slowly through the ocean, headed…

A: Given A negatively charged chlorine ion (CI) in seawater is floating slowly through the ocean,…

Q: Suppose that a uniform magnetic field points out of this sheet of paper. If a positively charged…

A:

Q: A proton, traveling with a velocity of 3.1 x 10ºm/s due east, experiences a magnetic force that has…

A:

Q: Five equal-mass particles (A–E) enter a region of uniform magnetic field directed into the page.…

A:

Q: A 10 micro-Coulomb charge moves in the X-Y plane with a velocity 5x10° m/s making an angle of 60°…

A:

Q: The magnetic field inside a current- carrying helical spring has amagnitude B. If the spring is…

A: The magnetic field strength = B Original length = L number of turns = N

Q: A student performs the experiment on Magnetic Field Lines and sketches the patterns formed by the…

A: The magnetic field lines for a bar magnet emerges from the north pole and enters to the south pole…

Q: 1. B electron Figure 1 y F (a) Figure 1 shows a force F (in the x-y plane) of magnitude 5.0 x 10-13…

A:

Q: An ELECTRON moves to the west at 4.8 x 10^7 m/s and experiences a magnetic force of 6.0 x 10-13 N…

A:

Q: A charged particle with velocity ý- (5.0 m/s)1 mrves in a magnetic field -(2.0 uT) k and an electric…

A: Net force on the particle is zero. We need to find  the electric field.

Q: A proton, traveling with a velocity of 4.7 × 106 m/s due east, experiences a magnetic force that has…

A: Given : Velocity of proton in east direction, v = 4.7 x 106 m/s Proton charge, q = 1.6 x 10-19 C…

Q: What is the direction of the magnetic force on a positive charge moving into the page in a B field…

A: The magnetic force on the charge is F→=qv-j^×Bi^=qvBk^ The charge moving into the page is considered…