Question
In: Chemistry
How long should a 2.3 mm diameter copper wire be to contain 1024 atoms? Atomic mass...
How long should a 2.3 mm diameter copper wire be to contain 1024 atoms? Atomic mass and density of Cu are 63.54 g/mol and 8.93 Mg/m3, respectively.
Solutions
queen_honey_blossom answered 2 years agoRelated Solutions
A 2.0 mm -diameter, 50 cm -long copper wire carries a 4.5 A current. What is...
A 2.0 mm -diameter, 50 cm -long copper wire carries a 4.5 A
current. What is the potential difference between the ends of the
wire?
An electric wire having a diameter of 2.3 mm and covered with a plastic insulation of...
An electric wire having a diameter of 2.3 mm and covered with a
plastic
insulation of thickness 0.63 mm is exposed to air at 336 K and h=
32W/m2 K. It
is assumed that the wire surface temperature is constant at 415 K
and is not
affected by the covering. Calculate the value of the critical
radius. Calculate the
heat loss per m of wire length with no insulation and heat loss
with insulation
being present.
Data given:
Plastic 0.4...
The atomic mass number of copper is 64. Assume that atoms in solid copper form a...
The atomic mass number of copper is 64. Assume that atoms in
solid copper form a cubic crystal lattice. To visualize this,
imagine stacking tiny sugar cubes into a big cube. If you pretend
there is a copper atom in the middle of each sugar cube, then
dissolve the sugar away, the copper forms a cubic lattice. What is
the smallest distance between copper atoms?
Hint: The answer is 0.228nm, but you must still show all your
work with clear...
How much 1.0 mm diameter copper wire would it take to equal the resistance of one...
How much 1.0 mm diameter copper wire would it take to equal the
resistance of one 100 Ω resistor? The resistivity of copper is
1.68*10-8 Ωm
b) What would be the current if this wire was connected to a
12.0 V battery?
c) How many electrons per second pass by a point on the
wire?
d) If this wire was coiled up and submerged in 100 mL of water
at 20oC, how long would it take for the water to...
What is the resistance of a 2.9-m length of copper wire 1.4 mm in diameter?
What is the resistance of a 2.9-m length of copper wire 1.4 mm in diameter? The resistivity of copper is 1.68×10-8Ω⋅m.
A copper wire with diameter of 1,5 mm and length of 4m carries constant current of...
A copper wire with diameter of 1,5 mm and
length of 4m carries constant current of 1.75 A. The free electron
density in the wire is 8,5x1028 m-3. The
resistivity of copper is 1,72x10-8 .m. Calculate
a) current density,
b)drift velocity,
c) magnitude of electric field,
d) potential between the terminals of wire,
e)power dissipated as heat
f) mean free time. (mass of electron: 9,1x10-31kg,
magnitude of charge of electron: 1,6x10-19 C)
If 47.0 cm of copper wire (diameter = 1.00 mm) is formed into a circular loop...
If 47.0 cm of copper wire (diameter = 1.00 mm) is formed into a
circular loop and placed perpendicular to a uniform magnetic field
that is increasing at a constant rate of 10.5mT/s, at what rate is
thermal energy generated in the loop?
_______________ W
A number 14 copper wire has a diameter of 1.628 mm. Calculate the resistance of a...
A number 14 copper wire has a diameter of 1.628 mm. Calculate
the resistance of a 34.0 m long piece of such wire.
(Use 1.72×10-8 Ωm for the resistivity of copper.)
2.809×10-1 Ohm
For safety, the National Electrical Code limits the allowable
amount of current which such a wire may carry. When used in indoor
wiring, the limit is 15.0 A for rubber insulated wire of that size.
How much power would be dissipated in the wire of the above...
A 0.500 mm diameter copper wire makes up a 136 turns, 7.60 cm diameter coil. There...
A 0.500 mm diameter copper wire makes up a 136 turns, 7.60 cm
diameter coil. There is a magnetic field parallel to the axis of
the coil. If the induced current in the coil is 2.80 A, what is the
rate of change of the magnetic field? a) 0.0839 T/s b) 3.63×10-6
T/s c) 12.8 T/s d) 1.74×103 T/s
1-What is the resistance of a 5km long copper wire with a diameter of 4mm? a....
1-What is the resistance of a 5km long copper wire with a diameter
of 4mm?
a. 1.65 ohms
b. 0.0015 ohms
c. .0065 ohms
d. 6.7 ohms
2- three 4mF capacitor are connected in series across a 12 V
battery. The total charges stored by this compination of capacitor
is
A. 24 mC
B. 16 mC
C. 48 mC
D. 144 mC
E. None of the above
3. What would be the energy stored in the capacitor in the
previous...
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