Question

A 26.0 cm diameter coil consists of 24 turns of cylindrical copper wire 2.40 mm in diameter. A uniform magnetic field, perpendicular to the plane of the coil, changes at a rate of 6.50e-3 T/s. Determine the current in the loop in milli-amps (the resistivity for copper is 1.72e-8Ω.m).

answer in mA

Answer #1

A 29 cm diameter coil consists of 22 turns of cylindrical copper
wire 2.6 mm in diameter. A uniform magnetic field, perpendicular to
the plane of the coil, changes at a rate of 7.00

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 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 15.4 cm -diameter coil consists of 21 turns of circular copper
wire 2.6 mm in diameter. A uniform magnetic field, perpendicular to
the plane of the coil, changes at a rate of 7.02×10−3
T/s .
Determine the current in the loop.
Express your answer using two significant figures.
I =
A
Determine the rate at which thermal energy is produced.
Express your answer using two significant figures.
P =
W

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...

The magnetic field perpendicular to a single 15.7-cm-diameter
circular loop of copper wire decreases uniformly from 0.530 T to
zero. If the wire is 2.25 mm in diameter, how much charge moves
past a point in the coil during this operation? The resistivity of
copper is 1.68×10−8Ω⋅m.

The magnetic field perpendicular to a single 14.2-cm-diameter
circular loop of copper wire decreases uniformly from 0.670 T to
zero. If the wire is 2.75 mm in diameter, how much charge moves
past a point in the coil during this operation? The resistivity of
copper is 1.68×10−8Ω⋅m. Express your answer to three significant
figures and include the appropriate units.

The magnetic field perpendicular to a single 15.7-cm-diameter
circular loop of copper wire decreases uniformly from 0.550 T to
zero.
If the wire is 2.75 mm in diameter, how much charge moves past a
point in the coil during this operation? The resistivity of copper
is 1.68×10−8Ω⋅m. Express your answer to three significant figures
and include the appropriate units.

A copper coil with 30 turns and radius 10 cm has a magnetic
field going through it which changes in time according to the
formula B = 5e-0.3t Tesla. The radius of the wire is 0.24 mm and
the resistivity of copper is 1.68 x 10-8 Ωm.
(a) Calculate the induced voltage in the coil at 4 seconds.
(b) Calculate the induced current in the coil at 4 seconds.

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