Question
In: Physics
1. To construct a nonmechanical water meter, a 0.500-T magnetic field is placed across the pipe...
1. To construct a nonmechanical water meter, a 0.500-T magnetic field is placed across the pipe supplying water to a home, and the Hall voltage between the ends of a pipe diameter perpendicular to the field is measured. This works, because water contains ions, which are charged particles and move at the flow speed of the water.
Find the flow rate, in cubic meters per second, through a 2.2-cm diameter pipe if the Hall voltage is 75 mV.
What would be the Hall voltage, in volts, for the same flow rate through a 9.5-cm-diameter pipe with the same field applied?
Solutions
genius_generous answered 2 years agoRelated Solutions
A 20-cmcm-diameter circular loop of wire is placed in a 0.64-T magnetic field. a) When the...
A 20-cmcm-diameter circular loop of wire is placed in a 0.64-T
magnetic field.
a) When the plane of the loop is perpendicular to the field
lines, what is the magnetic flux through the loop?
Express your answer to two significant figures and include the
appropriate units.
b) The plane of the loop is rotated until it makes a
45 angle with the field lines. What is the angle in the
equation ΦB = BAcosθ for this situation?
Express your answer using...
A flat coil of wire is placed in a uniform magnetic field that is in the...
A flat coil of wire is placed in a
uniform magnetic field that is in the y direction. (i) The
magnetic flux through the coil is maximum if the coil is (a) in the
xy plane(b) in either the xy or the yz plane (c) in the xz plane
(d) in any orientation, because it is constant. (ii) For
what orientation is the flux zero? Choose from the
same possibilities.
A sphere made of a linear magnetic material with Xm is placed in a uniform magnetic field B0.
A sphere made of a linear magnetic material with Xm is placed in a uniform magnetic field B0. Determine the field inside the sphere. Hint: The external field will magnetize the sphere. This magnetization will create another uniform magnetic field inside the sphere which will cause an additional magnetization. Thus, you need to find a series expression.
A capacitor is connected to a battery and placed in a magnetic field (-z direction) to...
A capacitor is connected to a battery and placed in a magnetic
field (-z direction) to form a velocity selector. A charge moving
at 3,479.6 m/s is not deflected by the velocity selector. If the
voltage of the battery is 7 volts and the distance between the
sheets is 0.3 meters, what is the amount of the magnetic field in
milli-Tesla?
a) In the middle of a coil, the magnetic field induction is B0 = 0.5 T....
a) In the middle of a coil, the magnetic field induction is B0 =
0.5 T. Determine the magnetic field induction B along the axis of
the coil at its edge. b) In the middle of a capacitor, the electric
field intensity is E0 = 1000 V/m. Determine the electric field
intensity E between the capacitor plates at the capacitor edge
A magnetic field has a magnitude of 1.2e-3 T, and an electric field has a magnitude...
A magnetic field has a magnitude of 1.2e-3 T, and an electric
field has a magnitude of 5.1e3 N/C. Both fields point in the same
direction. A positive -1.8 microC moves at a speed of 3.5e6 m/s in
a direction that is perpendicular to both fields. Determine the
magnitude of the net force that acts on the charge.
1.a. A 0.5 m wire moves perpendicular to a .02 T magnetic field at a speed...
1.a. A 0.5 m wire moves perpendicular to a .02 T magnetic field
at a speed of 25 m’s. Find the induced e.m.f. in the wire.
1.b. A circular coil of wire has 100 turns, an internal area of
0.25 m2. A magnetic field inside the coil changes form
0.02 T to 0.08 T in 0.001 seconds. Find the induced e.m.f. in the
coil.
1.c Find the magnetic flux inside a coil that has a magnetic
field of 0.02 T...
1.a. A 0.5 m wire moves perpendicular to a .02 T magnetic field at a speed...
1.a. A 0.5 m wire moves perpendicular to a .02 T magnetic field
at a speed of 25 m’s. Find the induced e.m.f. in the wire.
1.b. A circular coil of wire has 100 turns, an internal area of
0.25 m2. A magnetic field inside the coil changes form
0.02 T to 0.08 T in 0.001 seconds. Find the induced e.m.f. in the
coil.
1.c Find the magnetic flux inside a coil that has a magnetic
field of 0.02 T...
A square coil of wire of side 3.00 cm is placed in a uniform magnetic field...
A square coil of wire of side 3.00 cm is placed in a uniform magnetic
field of magnitude 1.75 T
directed into the page as in the figure shown below. The coil has
38.0 turns and a resistance of
0.780 Ω. If the coil is rotated through an angle of
90.0° about the horizontal axis shown in 0.335 s, find the
following.
(a) the magnitude of the average emf induced in
the coil during this rotation
(b) the average current...
A circular conducting loop with radius 2.70 cm is placed in a uniform magnetic field of...
A circular conducting loop with radius 2.70 cm is placed in a
uniform magnetic field of 0.680 T with the plane of the loop
perpendicular to the magnetic field, as shown. The loop is rotated
180° about the axis in 0.242 s.
1.What is the direction of the induced current flow as the loop
begins to rotate?
2.What is the average induced emf in the loop during this
rotation?
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