Question

Calculate the magnetic induction at the center of a circular coil having 100 turns of radius 10 cm which is carrying a current of 5 A

Answer #1

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A flat circular coil having 15 turns, each of a radius of 18.0
cm, is in a uniform and steady 0.130-T magnetic field. The coil has
a resistance of 8.00
a) Find the total magnetic flux through one turn of the coil
when the field is parallel to the axis of the coil.
b) If the coil is rotated in 12.0 ms so its axis is
perpendicular to the field, find the average induced voltage and
the induced current in...

A circular loop of radius 14 cm carries a current of 15 A. A
flat coil of radius 1.2 cm, having 65 turns and a current of 1.1 A,
is concentric with the loop. The plane of the loop is perpendicular
to the plane of the coil. Assume the loop's magnetic field is
uniform across the coil. What is the magnitude of (a) the magnetic
field produced by the loop at its center and (b) the torque on the
coil...

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 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?

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
magnitude of the external magnetic field is changing at a rate of
ΔB/Δt = 0.837 T/s, thereby inducing a current in the coil. Find the
magnitude of the magnetic field at the center of the coil that is
produced by the induced current.

Q9. what is the magnetic flux density (B-field) at the center of
a circular coil of radius 10 X 10^-3m and 37 turns in air when a
current of 72 X10^-6 A flows through it? give your answer in
units of Tesla.

20.1 A short circular coil with 15 turns has a radius of 7 cm. The
coil is placed is a 2.5 T magnetic field. Find the flux through the
coil for each case: a) the plane of the coil is perpendicular to
the magnetic field b) the angle between the plane of the coil and
the magnetic field is 35o.

A circular coil with radius r and N turns rotates in a magnetic
field B with angular velocity ω. The coil is connected to a
resistor with resistance R. Find the average power delivered to the
resistor.

A closely wound, circular coil with radius 2.80 cmhas 800 turns
of wire. "Closely Wound" means all of the wire loops can be
approximated to be the same radius and at the same position.
A) What must the current in the coil be if the magnetic field at
the center of the coil is 0.0790 T?
I=
B)
At what distance x from the center of the coil, on the
axis of the coil, is the magnetic field half its...

A circular coil of wire with 5 turns and a radius of 4.0 cm lies
flat on a table in a region where the magnetic field is 4.5 mT up.
The coil is flipped over in a time of 0.25 s. Is an emf induced in
the coil? If so, what is its average value?

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