In: Physics

A coil is wrapped with 226 turns of wire on the perimeter of a circular frame (of radius 70 cm). Each turn has the same area, equal to that of the frame. A uniform magnetic field is directed perpendicular to the plane of the coil. This field changes at a constant rate from 22 mT to 61 mT in 79 ms. What is the magnitude of the induced average E in the coil, over the time interval 79 ms during which the field changes? Answer in units of V.

A coil is wrapped with 291 turns of wire on the perimeter of a
square frame of sides 25.3 cm. Each turn has the same area, equal
to that of the frame, and the total resistance of the coil is 2.05
Ohm. A uniform magnetic field is turned on perpendicular to the
plane of the coil. If the field changes linearly from 0 to -0.0491
Wb/m2 in a time of 1.07 s, find the magnitude of the induced emf in...

A circular coil of wire with radius 4 cm and 20 turns is placed in
a uniform magnetic field of magnitude 0.3 T. The magnetic field is
parallel to the area vector; i.e. perpendicular to the plane of the
coil.
a) What is the magnetic flux through the coil?
b) The magnetic field is decreased to 0 T in 0.1 s. What is the
magnitude of the emf
induced in the coil during this time interval?
c) If the coil...

A circular coil with a radius of 0.4 meters wrapped 47 times is
spun at a frequency of 21 Hz in a uniform magnetic field to form a
generator. It is then connected to the primary transformer. The
primary side has 36 turns and the secondary side has 15 turns. The
maximum secondary current is 6 amps and the resistance of the coil
on the primary side is 3 Ohms. What is the amount of the magnetic
field in the...

A solenoidal coil with 23 turns of wire is wound tightly around
another coil with 350 turns. The inner solenoid is 25.0 cm long and
has a diameter of 2.40 cm . At a certain time, the current in the
inner solenoid is 0.120 A and is increasing at a rate of 1600
A/s
A)For this time, calculate the average magnetic flux through
each turn of the inner solenoid.
Express your answer in webers.
B)For this time, calculate the mutual...

A solenoidal coil with 30 turns of wire is wound tightly around
another coil with 310 turns. The inner solenoid is 20.0 cm long and
has a diameter of 2.50 cm . At a certain time, the current in the
inner solenoid is 0.150 A and is increasing at a rate of 1700 A/s
.
Part A
For this time, calculate the average magnetic flux through each
turn of the inner solenoid.
Part B
For this time, calculate the...

A solenoidal coil with 28 turns of wire is wound tightly around
another coil with 320 turns. The inner solenoid is 21.0cm long and
has a diameter of 2.20cm . At a certain time, the current in the
inner solenoid is 0.150Aand is increasing at a rate of
1600A/s
Part A
For this time, calculate the average magnetic flux through each
turn of the inner solenoid.
Part B
For this time, calculate the mutual inductance of the two
solenoids;
Part...

A solenoidal coil with 20 turns of wire is wound tightly around
another coil with 320 turns. The inner solenoid is 21.0 cm long and
has a diameter of 2.50 cm . At a certain time, the current in the
inner solenoid is 0.140 A and is increasing at a rate of 1800 A/s
.
For this time, calculate the mutual inductance of the two
solenoids;
For this time, calculate the emf induced in the outer solenoid
by the changing...

A coil of wire containing N turns is in an external magnetic
field that is at a LaTeX: 45^o45 o angle from the plane of the coil
and is steadily changing. Under these circumstances, an emf V is
induced in the coil. If both the rate of change of the magnetic
field and the number of turns in the coil are now doubled (but
nothing else changes), what will be the induced emf in the
coil?

You are given 13.0 mm of thin wire. You form the wire into a
circular coil with 40 turns.
If this coil is placed with its axis parallel to a 0.19 TT
magnetic field, what is the flux through the coil?
Express your answer with the appropriate units.

A circular coil of 300 turns and radius 10 cm is connected to a
current integrator. The total resistance of the circuit is 45 Ω.
The plane of the coil is originally aligned perpendicular to the
earth’s magnetic field at some point. When the coil is rotated
through 90◦ , the charge that passes through the current integrator
is measured to be 9.2 µC. Calculate the magnitude of the earth’s
magnetic field at that point. Answer in units of µT

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