Question

Figure 4 shows a rectangular 95.0 turns coil of wire of dimensions 50 cm by 30 cm. It carries a current of 1.5 A in the counterclockwise direction. It is mounted in the x-y plane. The magnetic field makes an angle of θ= 41.0° with the positive x-axis and magnitude 1.2 T. Calculate the orientation energy of the coil in the magnetic field.

Answer #1

The figure shows a rectangular, 22-turn coil of wire, of
dimensions 9.3 cm by 3.9 cm. It carries a current of 0.14 A and is
hinged along one long side. It is mounted in the xy plane,
at an angle of 30° to the direction of a uniform magnetic field of
magnitude 0.69 T. Find the (a) x,
(b) y, and (c)
z components of the torque acting on the coil about the
hinge line.

A closely wound rectangular coil of 95.0 turns has dimensions of
22.0 cm by 49.0 cm. The plane of the coil is rotated from a
position where it makes an angle of 35.0 ∘ with a magnetic field of
1.20 T to a position perpendicular to the field. The rotation takes
0.120 s. What is the average emf induced in the coil?

A 50.0 cm ✕ 35.0 cm rectangular coil of 20 turns lies in the
horizontal (x-z) plane with its 50.0 cm side along the
+x axis and its 35.0 cm side along the +z axis.
The coil is in the region of a magnetic field
B = (2.75 ✕ 10−2 T/m ·
s)ztĵ − (3.65 ✕ 10−2
T/m)x.
(a) Determine the magnitude of the induced emf.
mV
(b) What is the direction of the induced emf in the coil as...

A 200-turn rectangular coil having dimensions of 3.0 cm by 6.0
cm is placed in a uniform magnetic field of magnitude 0.76 T. (a)
Find the current in the coil if the maximum torque exerted on it by
the magnetic field is 0.14 N · m. A (b) Find the magnitude of the
torque on the coil when the magnetic field makes an angle of 25°
with the normal to the plane of the coil. N · m

An electric generator contains a coil of 125 turns of wire, each
forming a rectangular loop 45.0 cm by 20.0 cm. The coil is placed
entirely in a uniform magnetic field with magnitude B = 3.50 T and
with B-> initially perpendicular to the coil's plane. What is
the maximum value of the emf produced when the coil is spun at 1250
rev/min about an axis perpendicular to B->?

The rectangular coil, whose total resistance is 15 Ω and the
number of turns is 80, is 20 cm x 30 cm. This coil rotates at an
angle of 40 rad / s to start moving around the y-axis at the time
of t = 0 in the 1.5 T magnitude magnetic field applied along the
x-axis..
a)The greatest value of emf induced in the coil
b) magnitude of emf induced in t=1.5 seconds

2. A circular coil with 30 turns of wire has a diameter of 2.00
cm. The total resistance of the coil is 0.350 Ω. An applied uniform
magnetic field is directed upward, perpendicular to the plane of
the coil.
a) If the magnetic field changes linearly from 0.000 T to 0.800
T in 0.500 s, what is the induced emf in the coil while the field
is changing?
b) What is the magnitude and direction (CW or CCW when looked...

3.1. A flat coil of wire consists of 500 turns each 4 cm in
diameter. If a current of 5
amperes flows in the coil, calculate:-
(a) the magnetic moment of the coil;
(b) the magnetostatic potential at a point 50 cm from the coil
along its axis in a
direction related by a right-hand screw to the sense of current
circulation;
(c) the magnetostatic potential at a point in the plane of the
coil 5 metres away;
(d) the...

The rectangular loop of wire shown in the figure (Figure 1) has
a mass of 0.11 g per centimeter of length and is pivoted about side
ab on a frictionless axis. The current in the wire
is 8.3 A in the direction shown.
6cm by 8cm
Find the magnitude of the magnetic field parallel to the
y-axis that will cause the loop to swing up until its
plane makes an angle of 30.0 ? with the
yz-plane.

A wire coil has 1340 turns of copper wire. The
cross-section radius is .4 mm. It has a diameter of 3.4 cm and a
length 8.95 cm. It is oriented along the y-axis. Each end is
connected to a 12 V battery. The temp. is 210C.
a)find the length of the wire needed for the
coil
b)the resistance of the coil
c) the magnitude of the magnetic field at a point within the
coil
d) a +30 uC particle is...

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