The force on the wire is

F = 0.027 N
B = magnetic flux density
I = current in the wire = 3.5 A
L = length of the wire = 5 cm = 0.05 m
Therefore the magnetic flux density is

The unit is Telsa
b) Assumptions are:
The magnetic flux density between the poles is uniform
The magnetic flux density is perpendicular to the length of the wire
The force does not move the wire and the wire stays perpendicular to the magnetic flux density
3 A small horseshoe magnet is placed on a balance and a stiff wire is clamped...
16. A horseshoe magnet, made from two magnets and a steel yoke, is placed on a top pan balance as shown in the upper diagram. A current is passed through a long wire which is fixed. The wire is between, and parallel to, the poles of the magnet, as shown in the lower diagram. 74.87 horseshoe magnet plan view wire balance platform The current is varied. The following values of balance reading m and current I are recorded. I JA...
Please clearly draw magnetic
dipole moment for both loops and explain how its done.
A small square loop of wire carrying some current is located between the poles of a horseshoe mag- net as shown in the diagram. Throughout this problem you may assume that the magnetic field between the poles is constant. Note that the loop is shown skewed only to pro- vide some perspective. When the loop is vertical, its face is actually parallel to the poles of...
The force on a wire is a maximum of 4.50×10−2 N when placed between the pole faces of a magnet. The current flows horizontally to the right and the magnetic field is vertical. The wire is observed to "jump" toward the observer when the current is turned on.A) If the pole faces have a diameter of 14.0 cm , estimate the current in the wire if the field is 0.460 T .B) If the wire is tipped so that it...
18. A loudspeaker is constructed from a circular, concentric permanent magnet that produces a radial magnetic field of flux density B-0.8T, as shown in the front view in Figure 8A. In the circular gap between the poles, a circular coil of radius 16 mm is placed, and attached to a moveable cone which produces the sound at the front of the speaker (see Figure 8B, sectional view). The coil consists of 30 turns of copper wire (only 8 shown in...
No referring, thanks.The force on a wire is a maximum of 4.50×10−2 N when placed between the pole faces of a magnet. The current flows horizontally to the right and the magnetic field is vertical. The wire is observed to "jump" toward the observer when the current is turned on.A) What type of magnetic pole is the top pole face? 1. South pole 2. North poleB) If the pole faces have a diameter of 14.0 cm , estimate the current...
1) Induced emf in a coil depends on a) Relative motion of magnet b) Relative motion of coil c) Both d) None 2) When is passed through coil is there magnet a a (changing/unchanging) magnetic flux through the coil that induces an electromotive force(emf) in the coil; the incoming flux is (equal /not equal)to the outgoing flux. 3) While a magnet is moved toward the end of a solenoid, a voltage difference is induced between the two ends of the...
QUESTION 27 A circular coil of wire with radius 3 cm and 50 turns is placed in a uniform magnetic field of magnitude 0.4 T. The magnetic field is parallel to the area vector; l.e. perpendicular to the plane of the coll." a) What is the magnetic flux through the coll? b) The magnetic field is decreased to 0 in 0.1s. What is the magnitude of the emf induced in the coll during this time interval? c) If the coil...
QUESTION 1. In the figure, when the conductor placed between
the magnet is turned from the outside, draw approximately the
time-dependent change of the current passing through the lamp and
write what can be done to increase the value of this current
(specify the laws and equations you use). mechanical energy A) .
Find the magnetic flux density at the 'z' distance from the
infinite linear wire carrying the current I by Biot-Savart law. B)
. For a soft material...
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Question 1 Not yet answered Marked out of 4.00 Flag question If the number density of electrons in a wire is n 1.00 x 1028 m-3, at what drift velocity must they travel through a wire of diameter d 0.560 mm to deliver a current of 7.20 A? Give your answer in mm s1 to 3 significant figures...
Consider a cylindrical capacitor like that shown in Fig. 24.6. Let d = rb − ra be the spacing between the inner and outer conductors. (a) Let the radii of the two conductors be only slightly different, so that d << ra. Show that the result derived in Example 24.4 (Section 24.1) for the capacitance of a cylindrical capacitor then reduces to Eq. (24.2), the equation for the capacitance of a parallel-plate capacitor, with A being the surface area of...