A bar magnet is oriented perpendicular to a uniform magnetic field as shown in (Figure 1) . Describe the force and/or torque on the magnet.
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There is a net torque on the magnet in a counterclockwise direction.In a uniform field, the magnet experiences a net torque that tends to align the north pole in the direction of the magnetic field.
Two concentric loops of wire are carrying currents in opposite directions as shown in (Figure 2) . Describe the net force and the torque on either of the current loops.
There is a net force on each loop that causes them to repel each other.The loops create magnetic fields in opposite directions, similar to what happens when two bar magnets are arranged with their north poles close to each other
If the bar magnet is flipped over and the south pole is brought near the hanging ball, the ball will be
The magnetic dipole moment (μ) of a coil depends on the current (I), the area of the coil (A), and the number of loops (N). Rank the three different coils of wire shown in (Figure 3) in order by the magnitude of their magnetic dipole moment.
All same: 60!!The magnetic dipole moment (μ) is proportional to the area of the loop (A), the current (I), and the number of coils (N). So, all three cases have the same magnetic dipole moment.Coil 2 = single coil with area 20cm2 and I=3A.Coil 2 = single coil with area 20;
m cm^2 and I = 3;
m A.Coil 1 = single coil with area 10cm2 and I=6A.Coil 1 = single coil with area 10;
m cm^2 and I = 6;
m A.Coil 3 = coil with 6 loops each with an area of 10cm2 and I=1A
The torque (τ) that is exerted on a magnetic dipole moment (μ) depends on the orientation of the magnetic dipole moment. Rank the three loops of wire carrying current shown in (Figure 4) in order by the magnitude of the torque exerted on them.
A 65-cm segment of conducting wire carries a current of 0.35 A. The wire is placed in a uniform magnetic field that has a magnitude of 1.24 T. What is the angle between the wire segment and the magnetic field if the force on the wire is 0.26 N?
A charged particle is observed traveling in a circular path of radius R in a uniform magnetic field. If the particle were traveling twice as fast, the radius of the circular path would be
An electron has an initial velocity to the south but is observed to curve upward as the result of a magnetic field. This magnetic field must have a component
a long coil of wire. If it is tightly wrapped, the magnetic field in its interior is almost uniform:BUonIUo (N/L)I
When closing the switch on the primary circuit, current is observed on the secondary circuit even though there is no battery (emf) on the secondary circuit.
conducting rod is being dragged along conducting rails, as shown in (Figure 1). The magnetic field is directed out of the screen. In what direction does the induced current flow through the light bulb?
A flat coil is in a uniform magnetic field. The magnetic flux through the coil is greatest when the plane of its area is
A square loop moves to the right from an area where B⃗ =0, completely through a region containing a uniform magnetic field directed into the figure (Figure 1), and then out to B=0 after point L. A current is induced in the loop
When a generator is used to produce electric current, the resulting electric energy originates from which source?