Question

1) A square coil with sides of length 0.4 meters, wrapped 35 times is placed in the x-y plane a magnetic field in the +z direction. The magnetic field changes from 0.2 T to 1 T in a time of 0.5 seconds. If the resistance of the square coil is 9 Ohms, what is the average induced current produced in the current in amps? If in the clockwise direction, indicate clockwise by including a negative sign.

Answer #1

2) A square coil with an initial area of 11 m2, is
wrapped once and is placed in the x-y plane a magnetic field in the
-z direction of 0.5 T. The area of the coil is changed in a time of
0.8 seconds. The resistance of the square coil is 9 Ohms, and when
the areas is changed, an induced current of 0.4 amps running
clockwise around the coil. What is the final area of the coil in
m2?

A circle with a radius of 0.4 meters is placed in the
x-y plane in a magnetic field directed in the -z direction. It is
wound once and its resistance is 6 Ohms. The initial magnetic field
is 0.6 Tesla. The magnetic field is then changed in 0.7 s and the
average induced current is 0.03 amps running counter-clockwise.
First, find the final magnetic field to needed to induce this
average current.
Then, the magnetic field (still in the -z...

A.
A circle with a radius of 0.3 meters is placed in the x-y plane
in a magnetic field directed in the -z direction. It is wound once
and its resistance is 6 Ohms. The initial magnetic field is 0.7
Tesla. The magnetic field is then changed in 0.4 s and the average
induced current is 0.04 amps running counter-clockwise. First, find
the final magnetic field to needed to induce this average
current.Then, the magnetic field (still in the -z...

1) A circle with a radius of 0.3 meters is placed in the x-y
plane in a magnetic field directed in the -z direction. It is wound
once and its resistance is 5 Ohms. The initial magnetic field is
0.4 Tesla. The magnetic field is then changed in 0.5 s and the
average induced current is 0.03 amps running counter-clockwise.
First, find the final magnetic field to needed to induce this
average current. Then, the magnetic field (still in the...

A circle with a radius of 0.3 meters is placed in the x-y plane
in a magnetic field directed in the -z direction. It is wound once
and its resistance is 6 Ohms. The initial magnetic field is 0.4
Tesla. The magnetic field is then changed in 0.5 s and the average
induced current is 0.02 amps running counter-clockwise. First, find
the final magnetic field to needed to induce this average
current.
Then, the magnetic field (still in the -z...

A circle with a radius of 0.3 meters is placed in the x-y plane
in a magnetic field directed in the -z direction. It is wound once
and its resistance is 6 Ohms. The initial magnetic field is 0.8
Tesla. The magnetic field is then changed in 0.6 s and the average
induced current is 0.03 amps running counter-clockwise. First, find
the final magnetic field to needed to induce this average
current.
Then, the magnetic field (still in the -z...

A solenoid runs though the x-y plane with 3/m x 104
(turns per meter) with current that is always counter-clockwise.
Initially, the current is 5 amps for the solenoid. A square wire
with sides of 0.49 meters is wrapped 21 times and is placed in the
x-y plane within the solenoid. Due to the current changing in the
solenoid over a time of 0.30 seconds, the average induced current
creates a magnetic moment of 73.7 x 10-3 A m2 in...

A solenoid runs though the x-y plane with 3/m x 104 (turns per
meter) with current that is always counter-clockwise. Initially,
the current is 5 amps for the solenoid. A square wire with sides of
0.49 meters is wrapped 21 times and is placed in the x-y plane
within the solenoid. Due to the current changing in the solenoid
over a time of 0.30 seconds, the average induced current creates a
magnetic moment of 73.7 x 10-3 A m2 in...

A circular coil with a radius of 0.29 meters is wrapped 752
times and is spun in a magnetic field of 0.22 milli-tesla. It is
then connected to the primary side of a transformer with 68
windings on the primary side. The secondary side has 25 windings.
If the resistance of the secondary side of the transformer is 7
Ohms. At what frequency, in Hertz, does the coil need to be spun in
the field if the maximum current on...

A square loop of wire, of side length 9.5 m, is placed on the
edge of a magnetic field of strength 3 T into the page. This field
can be described as a section of the Cartesian plane with x<0
(everywhere x is negative) and the loop is oriented so that it is
in this plane with its right edge at x=0 (it starts entirely within
the magnetic field).
The wire loop is then pulled in the +x direction (out...

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