Question

a) A 550-turn solenoid, 28 cm long, has a diameter of 2.3 cm . A 15-turn coil is wound tightly around the center of the solenoid. If the current in the solenoid increases uniformly from 0 to 4.6 A in 0.60 s , what will be the induced emf in the short coil during this time?

b) A 15.5-cm-diameter loop of wire is initially oriented perpendicular to a 1.4-T magnetic field. The loop is rotated so that its plane is parallel to the field direction in 0.25 s. What is the average induced emf in the loop?

Answer #1

A 400 turn solenoid , 30 cm long has a diameter of 1.5 cm. A 20
turn coil is tightly wound around the center of the solenoid. If
the current in the solenoid increases uniformly from 0.0 A to 4.50
A in 0.3 s, what will be the induced emf in the short coil during
this time?

A 410-turn solenoid, 21 cmcm long, has a diameter of 2.0 cmcm .
A 17-turn coil is wound tightly around the center of the
solenoid.
Part A
If the current in the solenoid increases uniformly from 0 to 5.9
AA in 0.65 ss , what will be the induced emf in the short coil
during this time?

Problem 21.12
A 700-turn solenoid, 21cm long, has a diameter of2.9cm . A
18-turn coil is wound tightly around the center of the
solenoid.
Part A)
If the current in the solenoid increases uniformly from 0 to
4.6A in 0.55s , what will be the induced emf in the short coil
during this time?
Express your answer to two significant figures and include the
appropriate units.

A 390-turn solenoid, 20 cmcm long, has a diameter of 3.6 cmcm .
A 14-turn coil is wound tightly around the center of the
solenoid.
If the current in the solenoid increases uniformly from 0 to 5.3
AA in 0.7 ss , what will be the induced emf in the short coil
during this time?
Express your answer using two significant figures.

shows a 100-turn coil of wire of radius 15 cm in a 0.25 T
magnetic field. The coil is rotated 90? in 0.30 s, ending up
parallel to the field. What is the average emf induced in the coil
as it rotates?

A very long, straight solenoid with a diameter of 3.00 cm is
wound with 40 turns of wire per centimeter, and the windings carry
a current of 0.225 A. A second coil having N turns and a
larger diameter is slipped over the solenoid so that the two are
coaxial. The current in the solenoid is ramped down to zero over a
period of 0.60 s.
a) What average emf is induced in the second coil if it has a
diameter...

Question 1: A 13.7 cm diameter loop of wire is initially
oriented perpendicular to a 1.9 T magnetic field. The loop is
rotated so that its plane is parallel to the field direction in
0.33 s .
Part A: What is the average induced emf in the loop?
Question 2: A 7.4 cm diameter circular loop of wire is in a 0.71
T magnetic field. The loop is removed from the field in 0.28 s .
Assume that the loop...

A 26.8 cm-diameter loop of wire is initially oriented
perpendicular to a 1.6 T magnetic field. The loop is rotated so
that its plane is parallel to the field direction in 0.22 s .
What is the magnitude of the average induced emf in the
loop?
Express your answer using two significant figures.
Eavg=
V

Constants
A very long, straight solenoid with a diameter of 3.00 cm is wound
with 40 turns of wire per centimeter, and the windings carry a
current of 0.245 A . A second coil having N turns and a larger
diameter is slipped over the solenoid so that the two are coaxial.
The current in the solenoid is ramped down to zero over a period of
0.3 s .
What average emf is induced in the second coil if it...

A 310 turn solenoid with a length of 23.0 cm and a radius of
1.60 cm carries a current of 1.85 A. A second coil of four turns is
wrapped tightly around this solenoid, so it can be considered to
have the same radius as the solenoid. The current in the 310 turn
solenoid increases steadily to 5.00 A in 0.900 s.
(a) Use Ampere's law to calculate the initial magnetic field in
the middle of the 310 turn solenoid....

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