Homework Answers
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A current I flows through a wire of length L shaped as an ellipse of area...
The size of the magnetic force on a straight wire of length L carrying current I...
The size of the magnetic force on a straight wire of length
L carrying current I in a uniform magnetic field
with strength B is
F=ILBsin(?).
Here ? is the angle between the direction of the
current (along the wire) and the direction of the magnetic field.
Hence Bsin(?) refers to the component of the
magnetic field that is perpendicular to the wire, B?. Thus
this equation can also be written as
F=ILB?.
The direction of the magnetic force on...
A horizontal length of current-carrying wire is suspended from two identical flexible leads that are under...
A horizontal length of current-carrying wire is suspended from
two identical flexible leads that are under tension due to the
weight of the wire. The wire is oriented at right angles to a
uniform magnetic field that has a magnitude of 4.5 T and is
directed out of the screen of the figure. The length L of the wire
is 5 cm and its mass m is 10 g. What current will produce a
magnetic force on the wire such...
b inside a current carrying wire A steady current I flows through a wire of radius...
b inside a current carrying wire
A steady current I flows through a wire of radius a. The current density in a wire varies with ras ) = kr2, where k is a constant and r is the distance from the axis of the wire. Find expressions for the magnitudes of the magnetic field inside and outside the wire as a function of r. (Hint: Find the current through an Ampèrian loop of radius r using thru /j. dA. Use...
A horizontal length of current-carrying wire is suspended from two identical flexible leads that are under...
A
horizontal length of current-carrying wire is suspended from two
identical flexible leads that are under tension due to the weight
of the wire. The wire is oriented at right angles to a uniform
magnetic field that has a magnitude of 3T and is directed into the
screen of the figure The length L of the wire is 5 cm and it's mass
m is 10g. What current will produce a magnetic force on the wire
such that it doubles...
5) A copper rod (length L, mass m) slides with speed v over a U-shaped wire...
5) A copper rod (length L, mass m) slides with speed v over a U-shaped wire inside a constant magnetic field (B). The loop has resistance R. a) Find the magnitude and direction of the induced current in terms of the given quantities and constants. (HINT 1: Area = x L). b) Find the force vector of the copper rod.
39. As an electric current flows through a wire, a. a magnetic field is generated that...
39. As an electric current flows through a wire, a. a magnetic field is generated that is inversely related to the current. b. magnetic field lines form around the wire that reverse direction when the current is reversed. c. the lines of magnetic force created closest to the wire are the weakest. d. magnetic lines of force are formed around the wire in the same direction regardless of the direction of the current.
A horizontal length of current-carrying wire is suspended from two identical flexible leads that are under...
A horizontal length of current-carrying wire is suspended from two identical flexible leads that are under tension due to the weight of the wire. The wire is oriented at right angles to a uniform magnetic field that has a magnitude of 2.5 T and is directed into the screen of the figure. The length L of the wire is 5 cm and its mass m is 10 g. What current will produce a magnetic force on the wire that is...
A horizontal length of current-carrying wire is suspended from two identical flexible leads that are under...
A horizontal length of current-carrying wire is suspended from two identical flexible leads that are under tension due to the weight of the wire. The wire is oriented at right angles to a uniform magnetic field that has a magnitude of 3 T and is directed into the screen of the figure. The length L of the wire is 5 cm and its mass m is 10 g. What current will produce a magnetic force on the wire such that...
A horizontal length of current-carrying wire is suspended from two identical flexible leads that are under...
A horizontal length of current-carrying wire is suspended from
two identical flexible leads that are under tension due to the
weight of the wire. The wire is oriented at right angles to a
uniform magnetic field that has a magnitude of 4.5 T and is
directed out of the screen of the figure. The length L of the wire
is 5 cm and its mass m is 10 g. What current will produce a
magnetic force on the wire such...
A horizontal length of current-carrying wire is suspended from two identical flexible leads that are under...
A horizontal length of current-carrying wire is suspended from
two identical flexible leads that are under tension due to the
weight of the wire. The wire is oriented at right angles to a
uniform magnetic field that has a magnitude of 4.5 T and is
directed out of the screen of the figure. The length L of the wire
is 5 cm and its mass m is 10 g. What current will produce a
magnetic force on the wire such...
The size of the magnetic force on a straight wire of length
L carrying current I in a uniform magnetic field
with strength B is
F=ILBsin(?).
Here ? is the angle between the direction of the
current (along the wire) and the direction of the magnetic field.
Hence Bsin(?) refers to the component of the
magnetic field that is perpendicular to the wire, B?. Thus
this equation can also be written as
F=ILB?.
The direction of the magnetic force on...
A horizontal length of current-carrying wire is suspended from
two identical flexible leads that are under tension due to the
weight of the wire. The wire is oriented at right angles to a
uniform magnetic field that has a magnitude of 4.5 T and is
directed out of the screen of the figure. The length L of the wire
is 5 cm and its mass m is 10 g. What current will produce a
magnetic force on the wire such...
b inside a current carrying wire
A steady current I flows through a wire of radius a. The current density in a wire varies with ras ) = kr2, where k is a constant and r is the distance from the axis of the wire. Find expressions for the magnitudes of the magnetic field inside and outside the wire as a function of r. (Hint: Find the current through an Ampèrian loop of radius r using thru /j. dA. Use...
A
horizontal length of current-carrying wire is suspended from two
identical flexible leads that are under tension due to the weight
of the wire. The wire is oriented at right angles to a uniform
magnetic field that has a magnitude of 3T and is directed into the
screen of the figure The length L of the wire is 5 cm and it's mass
m is 10g. What current will produce a magnetic force on the wire
such that it doubles...
5) A copper rod (length L, mass m) slides with speed v over a U-shaped wire inside a constant magnetic field (B). The loop has resistance R. a) Find the magnitude and direction of the induced current in terms of the given quantities and constants. (HINT 1: Area = x L). b) Find the force vector of the copper rod.
39. As an electric current flows through a wire, a. a magnetic field is generated that is inversely related to the current. b. magnetic field lines form around the wire that reverse direction when the current is reversed. c. the lines of magnetic force created closest to the wire are the weakest. d. magnetic lines of force are formed around the wire in the same direction regardless of the direction of the current.
A horizontal length of current-carrying wire is suspended from two identical flexible leads that are under tension due to the weight of the wire. The wire is oriented at right angles to a uniform magnetic field that has a magnitude of 2.5 T and is directed into the screen of the figure. The length L of the wire is 5 cm and its mass m is 10 g. What current will produce a magnetic force on the wire that is...
A horizontal length of current-carrying wire is suspended from two identical flexible leads that are under tension due to the weight of the wire. The wire is oriented at right angles to a uniform magnetic field that has a magnitude of 3 T and is directed into the screen of the figure. The length L of the wire is 5 cm and its mass m is 10 g. What current will produce a magnetic force on the wire such that...
A horizontal length of current-carrying wire is suspended from
two identical flexible leads that are under tension due to the
weight of the wire. The wire is oriented at right angles to a
uniform magnetic field that has a magnitude of 4.5 T and is
directed out of the screen of the figure. The length L of the wire
is 5 cm and its mass m is 10 g. What current will produce a
magnetic force on the wire such...
A horizontal length of current-carrying wire is suspended from
two identical flexible leads that are under tension due to the
weight of the wire. The wire is oriented at right angles to a
uniform magnetic field that has a magnitude of 4.5 T and is
directed out of the screen of the figure. The length L of the wire
is 5 cm and its mass m is 10 g. What current will produce a
magnetic force on the wire such...
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