Question

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 0.265 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 0.2 s .

What average emf is induced in the second coil if it has a
diameter of 3.6 cm and *N* = 7?

**Express your answer in microvolts to two significant
figures.**

What is the induced emf if the diameter is 7.2 cm and *N*
= 14?

Express your answer in microvolts to two significant figures.

Answer #1

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 AA . 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 0.6 s
.1.What average emf is induced in the second coil if it has a...

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...

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 long, straight solenoid with a cross-sectional area
of 12.00 cm2 is wound with 80 turns of wire per centimeter, and the
windings carry a current of 0.16 A. A second winding of 10 turns
encircles the solenoid at its center. The current in the solenoid
is turned off such that the magnetic field of the solenoid becomes
zero in 0.08 s. What is the average induced electromotive force
(emf) in the second winding? ( ??=?? ? ??−??.?/? ) (?=?.??)

A solenoid of lenght 35 cm has 380 turns of radius 2.6 cm. A
tightly wound coil with 16 turns of radius 4.8 cm is placed around
the solenoid. The axes of the coil and solenoid coincide. Find the
emf induced in the coil if the current in the solenoid varies
according to I=5.4sin(100πt) A.

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.

A very long, straight solenoid with a cross-sectional area of
1.97 cm2 is wound with 94.6 turns of wire per centimeter. Starting
at t = 0, the current in the solenoid is increasing according to
i(t)= ( 0.160 A/s2 )t2. A secondary winding of 5 turns encircles
the solenoid at its center, such that the secondary winding has the
same cross-sectional area as the solenoid. a.What is the magnitude
of the emf induced in the secondary winding at the instant...

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 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 very long, straight solenoid with a cross-sectional area of
2.12 cm2 is wound with 91.6 turns of wire per centimeter. Starting
at t = 0, the current in the solenoid is increasing
according to i(t)= ( 0.180 A/s2 )t2. A
secondary winding of 5 turns encircles the solenoid at its center,
such that the secondary winding has the same cross-sectional area
as the solenoid.
What is the magnitude of the emf induced in the secondary
winding at the instant...

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