An 1200-turn coil of wire that is 2.4 cm in diameter is in a
magnetic field...
An 1200-turn coil of wire that is 2.4 cm in diameter is in a
magnetic field that drops from 0.12 T to 0 TT in 10 ms . The axis
of the coil is parallel to the field.
part A) What is the emf of the coil? Express your answer in
volts.
A 210 turn flat coil of wire 25.0 cm in diameter acts as an
antenna for FM radio at a frequency of 100 MHz. The Magnetic field
of the incoming electromagnetic wave is perpendicular to the coil
and has a maximum strength of 9.30*10^-13 T.
What power is incident on the coil?
What average emf is induced in the coil over one-fourth of a
cycle?
If the radio receiver has an inductance of 2.30 microH, what
capacitance must it have...
A square coil of wire of side 3.00 cm is placed in a uniform magnetic
field of magnitude 1.75 T
directed into the page as in the figure shown below. The coil has
38.0 turns and a resistance of
0.780 Ω. If the coil is rotated through an angle of
90.0° about the horizontal axis shown in 0.335 s, find the
following.
(a) the magnitude of the average emf induced in
the coil during this rotation
(b) the average current...
A 123 turn circular coil of radius 2.27 cm is immersed in a
uniform magnetic field that is perpendicular to the plane of the
coil. Over an interval of 0.167 s , the magnetic field strength
increases from 54.5 mT to 94.1 mT . Find the magnitude of the
average emf avg induced in the coil during this time interval, in
millivolts.
A flat coil of wire is placed in a
uniform magnetic field that is in the y direction. (i) The
magnetic flux through the coil is maximum if the coil is (a) in the
xy plane(b) in either the xy or the yz plane (c) in the xz plane
(d) in any orientation, because it is constant. (ii) For
what orientation is the flux zero? Choose from the
same possibilities.
A 40-turn coil has a diameter of 11 cm. The coil is placed in a
spatially uniform magnetic field of magnitude 0.40 T so that the
face of the coil and the magnetic field are perpendicular. Find the
magnitude of the emf induced in the coil (in V) if the magnetic
field is reduced to zero uniformly in the following times.
(a)
0.30 s
V
(b)
3.0 s
V
(c)
65 s
V
A coil of wire containing N turns is in an external magnetic
field that is at a LaTeX: 45^o45 o angle from the plane of the coil
and is steadily changing. Under these circumstances, an emf V is
induced in the coil. If both the rate of change of the magnetic
field and the number of turns in the coil are now doubled (but
nothing else changes), what will be the induced emf in the
coil?
A 20-turn circular coil of radius 4.20 cm and resistance 1.00 Ω
is placed in a magnetic field directed perpendicular to the plane
of the coil. The magnitude of the magnetic field varies in time
according to the expression B = 0.010 0t + 0.040
0t2, where B is in teslas and t is in seconds. Calculate the induced emf in the coil att = 5.40 s.
A 410-turn solenoid, 21 cm long, has a diameter of 4.0 cm . A
12-turn coil is wound tightly around the center of the
solenoid.
If the current in the solenoid increases uniformly from 0 to 5.0
A in 0.51 s , what will be the induced emf in the short coil during
this time?
A 450-turn solenoid, 24 cm long, has a diameter of 2.2 cm . A
10-turn coil is wound tightly around the center of the solenoid. If
the current in the solenoid increases uniformly from 0 to 2.9 A in
0.57 s , what will be the induced emf in the short coil during this
time?
Please explain each step. Thanks!
A wire is formed into a circle having a diameter of 13.0 cm and placed in a uniform magnetic field of 2.50 mT. The wire carries a current of 5.00 A.(a) Find the maximum torque on the wire._____ µN·m(b) Find the range of potential energies of the wire-field system for different orientations of the circle.minimum_____µJmaximum_____ µJ