Question

A circular coil of wire (N=10 turns) of radius 0.20 m is in a uniform magnetic field of 0.50 T. The current in the loop is 4.0 A. What is the magnetic torque when the plane of the loop is parallel to the magnetic field?

Answer #1

A tightly wound circular coil has 43 turns, each of radius 0.165
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0.297 T in 0.435s, what average emf is induced in the windings of
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A circular loop of radius 14 cm carries a current of 15 A. A
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to the plane of the coil. Assume the loop's magnetic field is
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A circular coil of radius 10 cm and with 125 turns is initially
oriented perpendicular to a uniform magnetic field of strength 2.50
mT directed out of the page. The wire carries a current of .250 A.
a) Sketch the situation. b) Indicate the direction of the magnetic
moment of the coil. c) What is the torque on the coil? d) if the
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into the page...

A flat circular coil with 96 turns, a radius of 3.72 10-2 m, and
a resistance of 0.432 Ω is exposed to an external magnetic field
that is directed perpendicular to the plane of the coil. The
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ΔB/Δt = 0.837 T/s, thereby inducing a current in the coil. Find the
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produced by the induced current.

A 19.0 cm -diameter coil consists of 21 turns of circular copper
wire 3.0 mm in diameter. A uniform magnetic field, perpendicular to
the plane of the coil, changes at a rate of 8.38×10−3
T/s .
a) Determine the current in the loop.
b) Determine the rate at which thermal energy is produced.

A 20.8 cm -diameter coil consists of 22 turns of circular copper
wire 2.8 mm in diameter. A uniform magnetic field, perpendicular to
the plane of the coil, changes at a rate of 8.50×10^?3 T/s .
a) Determine the current in the loop
b) Determine the rate at which thermal energy is produced.

A circular coil of radius 4.0 cm, resistance 0.30 Ω, and 100
turns is placed in a uniform magnetic field at an angle of 30° with
the plane of the coil. The magnitude of the field changes with time
according to ?(?)=20?^(−0.3?) (in Tesla, t is time in seconds).
What is the value of the current induced in the coil at the time t
= 2.0 s?

A 23.6 cm -diameter coil consists of 21 turns of circular copper
wire 3.0 mm in diameter. A uniform magnetic field, perpendicular to
the plane of the coil, changes at a rate of 8.60×10?3 T/s.
Part A: Determine the current in the loop.
Part B: Determine the rate at which thermal energy is
produced.

A circular wire loop whose radius is 16.0 cm carries a current
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angle of 41.0° with a uniform magnetic field of 1.20 T. The initial
torque on the current loop will make the magnetic dipole moment
vector Will it?:
A. Try to align against the magnetic field
B. Try to align with the magnetic field.
C .There will be no torque on the loop
Then...

A circular loop of wire having a radius of 8.0 cm carries a
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i-0.80 j. (This unit vector gives the
orientation of the magnetic dipole moment vector.) If the loop is
located in a uniform magnetic field given by
B=0.25 i+0.30 k T.
Find (a) the torque on the loop (in unitvector notation) and (b)
the orientation...

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