Question

A magnetic field is described by *B*⃗
=*B*0*k*^sin*ω**t*, where *B*0 =
1.1 T and *ω* = 12 s−1 . A conducting loop with area 150 cm2
and resistance 7.0 Ω lies in the *x-y* plane.

PART A. Find the induced current in the loop at *t*=0

PART B. Find the induced current in the loop at *t* =
0.16 s

Answer #1

A uniform magnetic field is given by B?
=btk^, where b = 0.33 T/s .
1. Find the current in a conducting loop with area 300 cm2 and
resistance 0.65 ? that lies in the x-y plane.
2. In what direction is the current, as viewed from the positive
z axis?
clockwise
counterclockwise

A circular loop in the plane of the paper lies in a 0.75 T
magnetic field pointing into the paper. The loop’s diameter is
changed from 20.0 cm to 6.0 cm in 0.50 s.
Determine the direction of the induced current and justify your
answer.
Determine the magnitude of the average induced emf.
If the coil resistance is 2.5 Ω, what is the average induced
current?

A circular loop in the plane of the paper lies in a 0.65 T
magnetic field pointing into the paper. If the loop's diameter
changes from 19.4 cm to 7.2 cm in 0.15 s , what is the direction of
the induced current? What is the magnitude of the average induced
emf? If the coil resistance is 3.3 ? , what is the average induced
current?

A circular loop in the plane of the paper lies in a 0.78 T
magnetic field pointing into the paper.
A) What is the magnitude of the average induced emf? Answer in
V.
B) If the coil resistance is 4.3 ohm , what is the average
induced current? Answer in A

A circular loop in the plane of the paper lies in a 0.38 T
magnetic field pointing into the paper.
Part A: If the loop's diameter changes from 19.4 cm to 5.8 cm in
0.49 s , what is the direction of the induced current?
Part B: What is the magnitude of the average induced emf?

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.

A
single loop of aluminum wire, lying flat in a plane, has an area of
8.00 cm2 and a resistance of 2.50 Ω. A uniform magnetic field
points perpendicular to the plane of the loop. The field initially
has a magnitude of 0.500 T, and the magnitude increases linearly to
2.00 T in a time of 2.00 s. What is the induced current (in mA) in
the loop of wire over this time?

An 8.0cm× 8.0 cm square loop is halfway into a magnetic field
that is perpendicular to the plane of the loop. The loop's mass is
10 g and its resistance is 0.040 Ω . A switch is closed at t =0s,
causing the magnetic field to increase from 0 to 1.0 T in 0.010 s.
a) What is the induced current in the square loop? bWith what speed
is the loop "kicked" away from the magnetic field? Hint: What is...

A circular loop in the plane of a paper lies in a 0.75 TT
magnetic field pointing into the paper. The loop's diameter changes
from 20.5 cmcm to 6.4 cmcm in 0.46 ss .
What is the magnitude of the average induced emf?
What is the average induced current if the coil resistance is
4.3 Ω?

A circular loop in the plane of the paper lies in a 0.76 T
magnetic field pointing into the paper. If the loop's diameter
changes from 20.2 cm to 9.6 cm in
0.56 s. What is the direction of the induced current? What is
the magnitude of the average induced emf?

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 19 seconds ago

asked 11 minutes ago

asked 12 minutes ago

asked 12 minutes ago

asked 14 minutes ago

asked 38 minutes ago

asked 40 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago