Homework Answers
Add Answer to:
3. The electric resistance of a wire having length, cross section d and resistivity ? is...
4. Do resistance and resistivity depend on: - the wire length? - the wire cross-section? -...
4. Do resistance and resistivity depend on: - the wire length? - the wire cross-section? - the wire shape?
The resistance R of a wire of length l and uniform area of cross-section A is...
The resistance R of a wire of length l and uniform area of cross-section A is given by R = rhol/A, where rho is the resistivity of the wire. You melt the wire and recast it to have a new length l' = 10l (keeping the volume V = Al of the wire constant). What is the new resistance of the wire, if the original resistance of the wire was 100.0 Ohm.
A wire of length L and cross-sectional area A has resistance R. What will be the...
A wire of length L and cross-sectional area A has resistance R. What will be the resistance Rstretched of the wire if it is stretched to twice its original length? Assume that the density and resistivity of the material do not change when the wire is stretched.
A wire of length 0.47 meters and cross-section area 7.1 cm 2 has resistivity 96x10 -6...
A wire of length 0.47 meters and cross-section area 7.1 cm 2 has resistivity 96x10 -6 Ohm-meters. What is the resistance (in Ohms) of this wire?
The resistance R can be calculated using the formula below Cross Section Area Length Resistivity, typical...
The resistance R can be calculated using the formula below Cross Section Area Length Resistivity, typical value for copper 1,68 x 10-8 Ohm 02/02/2019 42 Exercise 01: Resistivity Calculation Exercise Find the resistance of a hollow cylindrical pipe of length 1m whose inner and outer radii are 0.1m and 0.2m respectively Assume that the cylindrical pipe is made of a material of resistivity 2 x 10-8ohm m
A wire has resistivity p, its LENGTH I DOUBLED and its AREA OF CROSS SECTION IS...
A wire has resistivity p, its LENGTH I DOUBLED and its AREA OF CROSS SECTION IS HALVED. What will be the new value of resistivity of the wire? A 1 ON 21 Select one: O a. p/2 ob.p C. 4p O d. 2p
Suppose you have a circular cross sectional wire with radius R, a resistivity of ρ, and...
Suppose you have a circular cross sectional wire with radius R,
a resistivity of ρ, and that is carrying a uniformly distributed
current of I(t) = I0 cos(ωt) (notice it changes in time).
a) Find the electric field that is generating this current using
the proper form of Ohm’s Law.
b) Find the magnetic field outside of the wire that is generated
by the current and the time changing electric field combined.
Question 2: Suppose you have a circular cross...
A copper wire has cross section area 0.002 m' and length of 400 m, what is...
A copper wire has cross section area 0.002 m' and length of 400 m, what is the resistance of this copper wire? When a 200-V potential difference is applied over the wire, what is the current through the wire and what is the electric power? If the current is uniformly distributed, what is the current density? If the drift speed is 10 m/s, what is the number density of electrons in the wire? (Given copper's resistivity as 2x10 s2 m)....
A wire with a circular cross section and a resistance R is lengthened to 5.24 times...
A wire with a circular cross section and a resistance R is lengthened to 5.24 times its original length by pulling it through a small hole. The total volume of the wire is unchanged. Find the resistance of the wire after it is stretched. Answer in units of R.
A piece of copper wire has a cross section of 4.0 mm2 and a length of...
A piece of copper wire has a cross section of 4.0 mm2 and a length of (o What is the electric resistance of the wire at 20 °C? (b) What is the poten- fterence across the wire when it carries a current of 10 A?
4. Do resistance and resistivity depend on: - the wire length? - the wire cross-section? - the wire shape?
The resistance R of a wire of length l and uniform area of cross-section A is given by R = rhol/A, where rho is the resistivity of the wire. You melt the wire and recast it to have a new length l' = 10l (keeping the volume V = Al of the wire constant). What is the new resistance of the wire, if the original resistance of the wire was 100.0 Ohm.
The resistance R can be calculated using the formula below Cross Section Area Length Resistivity, typical value for copper 1,68 x 10-8 Ohm 02/02/2019 42 Exercise 01: Resistivity Calculation Exercise Find the resistance of a hollow cylindrical pipe of length 1m whose inner and outer radii are 0.1m and 0.2m respectively Assume that the cylindrical pipe is made of a material of resistivity 2 x 10-8ohm m
A wire has resistivity p, its LENGTH I DOUBLED and its AREA OF CROSS SECTION IS HALVED. What will be the new value of resistivity of the wire? A 1 ON 21 Select one: O a. p/2 ob.p C. 4p O d. 2p
Suppose you have a circular cross sectional wire with radius R,
a resistivity of ρ, and that is carrying a uniformly distributed
current of I(t) = I0 cos(ωt) (notice it changes in time).
a) Find the electric field that is generating this current using
the proper form of Ohm’s Law.
b) Find the magnetic field outside of the wire that is generated
by the current and the time changing electric field combined.
Question 2: Suppose you have a circular cross...
A copper wire has cross section area 0.002 m' and length of 400 m, what is the resistance of this copper wire? When a 200-V potential difference is applied over the wire, what is the current through the wire and what is the electric power? If the current is uniformly distributed, what is the current density? If the drift speed is 10 m/s, what is the number density of electrons in the wire? (Given copper's resistivity as 2x10 s2 m)....
A piece of copper wire has a cross section of 4.0 mm2 and a length of (o What is the electric resistance of the wire at 20 °C? (b) What is the poten- fterence across the wire when it carries a current of 10 A?
Most questions answered within 3 hours.
-
284 mL of a 0.52 M potassium hydroxide solution is added to 467
mL of a...
asked 18 minutes ago -
exercise on VSEPR and molecular structrue.
octahedral
SeCl62-
TeCl62-
ClF62-
distorted
SeF62–
IF6–
asked 19 minutes ago -
Little’s Law: Val d’Costa is a world famous ski village in the
French Alps. Because of...
asked 1 hour ago -
Find the absolute error D for the calculation if A + B/C=D A=
9.4 +/- 0.4...
asked 1 hour ago -
New Air Heating and Cooling, manufactures furnaces and central
air units. The company pride itself on...
asked 1 hour ago -
A coach uses a new technique to train gymnasts. Seven
gymnasts were randomly selected and their...
asked 3 hours ago -
While rotating the tires on your car you notice a rock [mass =
0.1 Kg] stuck...
asked 5 hours ago -
Using MARS simulator, write MIPS programs according to
the following scenarios: Receive a positive integer number...
asked 7 hours ago -
An object in front of a concave mirror has a real image that is
11.5 cm...
asked 7 hours ago -
Consider the reaction, C3 H8 + O2 --> CO2 + H2O. How many
moles of O2...
asked 9 hours ago -
You and your opponent both roll a fair die. If you both roll the
same number,...
asked 9 hours ago -
In a study of the accuracy of fast food drive-through orders,
Restaurant A had 257 accurate...
asked 9 hours ago