Question

There is a uniform electric flux perpendicular to a circular
region of radius R = 2.2 cm. The electric flux is only contained
within the circular region, and the total value can be expressed by
the following function: ΦE = 5.3t, where ΦE is in V⋅m when t is in
seconds. At a radial distance of 4.0 cm from the center of the
circle, what is the magnitude of the induced magnetic field?
Express your answer in fT (femtoteslas). Femto- is 10-15.

Answer #1

a) There is a uniform electric flux perpendicular to a circular
region of radius R = 2.8 cm. The electric flux is only
contained within the circular region, and the total value can be
expressed by the following function: ΦE =
6.3t, where ΦE is in V⋅m when
t is in seconds. At a radial distance of 4.9 cm from the
center of the circle, what is the magnitude of the induced magnetic
field? Express your answer in fT (femtoteslas)....

The figure shows a circular region of radius R = 4.17 cm in
which an electric flux is directed out of the plane of the page.
The flux encircled by a concentric circle of radius r is given by
E,enc = (0.600 V·m/s)(r/R)t, where r ≤ R and t is in seconds. What
is the magnitude of the induced magnetic field at radial distance
2.17 cm? 1.325*10^17 T is wrong

1)in the figure below and electric field is directed out of the
page within a circular region of radius R=2.75cm. the field
magnitude is E=(0.410 v/m*s)(1-r/R)t where the t is in seconds and
the r is the radial distance
a) what is the magnitude of the induced magnetic filed at a
radial distance of 2cm?
b)what is the magnitude of the induced magnetic filed at a
radial distance of 5cm?

Suppose that you have a circular magnetic field ‘B’ of radius R
= 9.0 cm, pointing inside the page and if this field is increased
at the rate dB/dt = 0.15 T/sec. calculate (a) the magnitude of
induced electric field at a point within the magnetic field at a
distance r =5.0 cm, from the center of the field and (b) the
magnitude of the induced electric field at a point out side the
magnetic field at a distance r...

Uniform displacement-current density. The figure shows
a circular region of radius R = 3.70 cm in which a
displacement current is directed out of the page.The displacement
current has a uniform density of magnitude
Jd = 8.90 A/m2. What is the
magnitude of the magnetic field due to the displacement current at
radial distances (a) 1.40 cmand
(b) 4.50 cm?
(In nT)

1.
A cylindrical region of space of radius R contains a uniform
magnetic field B with direction into the page. If the magnitude B
inside the cylinder changes in time and outside the cylinder it is
zero, describe the induced electric field (magnitude and direction)
for points inside the cylinder (r < R). Find the magnitude and
direction of the induced electric field at r = 5.00 cm if the
magnetic field changes at a constant rate from 0.500T to...

A two-turn circular wire loop of radius 0.737 m lies in a plane
perpendicular to a uniform magnetic field of magnitude 0.591 T. If
the entire wire is reshaped from a twoturn circle to a one-turn
circle in 0.116 s (while remaining in the same plane), what is the
magnitude of the average induced emf E in the wire during this
time? Use Faraday’s law in the form E = − ∆(N Φ) ∆t . Answer in
units of V.

A five-turn circular wire coil of radius 0.425 m lies in a plane
perpendicular to a uniform magnetic field of magnitude 0.370 T. If
the wire is reshaped from a five-turn circle to a three-turn circle
in 0.101 s (while remaining in the same plane), what is the average
induced emf in the wire during this time?

A circular area with a radius of 7.20 cm lies in the x-y
plane.
1) What is the magnitude of the magnetic flux through this
circle due to a uniform magnetic field BBB = 0.213 TT that points
in the +z direction?
2) What is the magnitude of the magnetic flux through this
circle due to a uniform magnetic field BBB = 0.213 TT that points
at an angle of 53.7 ∘∘ from the +z direction?
3) What is the...

A circular coil of 312 winds of wire (radius = 7.0 cm,
resistance = 7.4 Ω) is placed in a uniform magnetic field that is
perpendicular to the plane of the loop. The magnitude of the field
changes with time according to ? = 90sin(7?) mT, where ? is
measured in seconds. Determine the magnitude of the current induced
in the loop at ?=?/7 s.

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