Question

Could you draw pictures and explain each answe is correct ( the correct answer is given for each I just need the explaination)

1. A loop of wire lays flat on a horizontal surface in an area with uniform magnetic field directed vertically down. Magnetic field suddenly grows stronger. While magnetic field is changing, the induced current in the loop as viewed from above is (:correct answer is Counterclockwise )

2. A wire with a constant in time current I is carrying current to North. A conducting loop of wire is moving towards the wire starting from some point to the west. Induced current in this loop is:( correct answer is clockwise)

3. Uniform magnetic field in has a form of a circle R (think about inside of a solenoid) and is directed out of page. Magnetic field is decreasing in magnitude. Electric field at the distance 2R from the center of a circle is directed (correct answer is Counterclockwise)

4. In previous question, electric field is maximum in magnitude at (: correct answer is R from the center )

Answer #1

Indicate the direction of the induced current in the loop, given
that a magnetic field directed ‘away’ from the page (perpendicular
and along the center axis of the loop) is gaining strength.
(a) Direction will clockwise or counterclockwise.
with diagram of wire loop

A circular wire loop 39 cm in diameter has resistance 120 Ω and
lies in a horizontal plane. A uniform magnetic field points
vertically downward, and in 25 ms it increases linearly from 5.0 mT
to 55 mT.
Find the magnetic flux through the loop at the beginning. (
Φ1 =
? mWb
)
Find the magnetic flux through the loop at the end of the 25-ms
period. Φ2 = ? mWb
What's the loop current during this time?
Express...

1. A long solenoid with 500 turns of wire, length L=80cm and
diameter d=2.5cm. The center of the solenoid is surrounded by a
circular loop of wire with a diameter dloop=5.0cm and a
resistance R=0.50ohm. The axis of the solenoid is also the axis for
the loop.
a. What is the magnetic field inside the solenoid when a current
of 2.0A passes through the solenoid? [note: the magnetic field
inside the solenoid is uniform and there is no magnetic field...

1. Which describes the vector calculation of the Biot-Savart
law?
a. The length element in the direction of the
current is crossed into a vector directed from that element toward
the point of measurement.
b. The length element in the direction of the current
is dotted into a vector directed from that element toward the point
of measurement.
c. The magnetic field vector is crossed into a vector
directed from a current-length element toward the point of...

1. In Ampere’s law, when we integrate the magnetic field along a
loop, which are summing?
a. the field components that are parallel to the
path elements, at every point along the loop
b. the field components that are perpendicular to the
path elements, at every point along the loop
c. the magnitudes of the field vectors at every point
along the loop
2. Which describes the magnetic field at a point inside a long
wire that...

1. In Ampere’s law, when we integrate the magnetic field along a
loop, which are summing?
a. the field components that are parallel to the
path elements, at every point along the loop
b. the field components that are perpendicular to the
path elements, at every point along the loop
c. the magnitudes of the field vectors at every point
along the loop
2. Which describes the magnetic field at a point inside a long
wire that...

A single loop of wire in the shape of a square with sides of
length l=25.0 cm is sitting in a uniform magnetic field of 1.30 T.
The field points out of the page, and the the loop is in the plane
of the page with sides parallel to the x and y axes.
(a) If a current of 3.70 A flows through the loop, what is the
magnitude of the magnetic force on a single side of the loop?...

A loop of wire sits in a uniform magnetic field, everywhere
pointing toward you. Due to a changing magnetic flux through the
loop, an induced current flows in the wire, clockwise as shown. The
area of the loop is J. 1.63 m2 , and the magnetic field initially
has magnitude K. 0.61 T.
(a) Suppose that, over a time period of L. 1.47 s, the magnetic
field changes from its initial value, producing an average induced
voltage of M. 8.7...

A long, thin solenoid has 700 turns per meter and radius
2.50 cm. The current in the solenoid is increasing at a uniform
rate of 39.0 A/s .
Part A
What is the magnitude of the induced electric field at a point
near the center of the solenoid?
Express your answer with the appropriate units.
Part B
What is the magnitude of the induced electric field at a point
0.500 cm from the axis of the solenoid?
Express your answer...

2 parter, THX
1) The magnetic field in a long solenoid of diameter d = 12.0 cm
is decreasing at a rate of 4.50 mT/s (due to the current being
gradually reduced). What is the magnitude of the induced electric
field at a distance r = 3.0 cm from the axis of the solenoid? Give
your answer in µV/m.
2) The magnetic field in a long solenoid of diameter d = 12.0 cm
is decreasing at a rate of 3.50...

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