Chapter 30 - Worksheet Material Below are typical values of resistivity for various samples of water. Suggest reasons for the wide variation in values. Sample Resistivity (2m) Pure water 2x107 Distilled water 5x10 Rainwater 2x104 Tap water 100-5000 Sea water 30

Q: 5. Find the current flowing across three resistors 3 2, 5 2 and 22 connected in parallel to a 15 V…

A: In the given question, We have to given circuit. In the given circuit We have to determine the…

Q: What statement is true? Select one: Oa. Resistance depend only on resistivity. Ob. Resistance depend…

A: We know, Resistance (R) = ρ*LA where ρ is the resistivity of the material L is the length of the…

Q: Calculate the resistivity (2.cm) of an n-type material has an electron mobility of 4200 cm?/V.s and…

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Q: At what temperature will silver have a resistivity that is four times the resistivity of copper at…

A: It is asked to find at what temperature silver have a resistivity that is four times the resistivity…

Q: Find the drift velocity vg of conduction electrons in a gold wire of diameter 2.03 mm when a current…

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Q: 1. Wire C and wire D are made from different materials and have length Lc = LD = 0.9 m. The…

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Q: A current i (conventional current) flows through a ohmic resistance R as shown below. As the current…

A: According the Ohm's law the voltage across resistor is equal to the product of current(I) flowing…

Q: If an electron in a material is subject to a force from an applied voltage (electric field) what…

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Q: Identify the following An important class of materials whose resistivity suddenly goes to zero…

A: Consider a graph between electrical resistivity (ρ) vs temperature below.

Q: Table 3 - Resistivity of Different Materials Length of the wires: 0. 240 m Cross Sectional Caleulate…

A: Given:

Q: Most metals are ________ conductors because they have a ________ resistivity to electricity. A)…

A: Introduction: The metals are good conductors of electricity because they have low resistivity due…

Q: A bipolar alkaline water electrolyzer stack module comprises 160 electrolytic cells that have an…

A: Solution;   Given Values,   Number of cells =160  Nominal cell potential = 1.96 V  cell active area…

Q: Calculate the electric resistance in ohms for a copper wire has a length of ( 8 m) and a radius of (…

A: Given values: Length of copper wire, l=8 mRadius, r=2 mmResistivity, ρ=1.6×10-8 Ωm

Q: 2- Pencil "lead" is actually carbon. What is the current if a 9.0 V potential difference is applied…

A: Voltage, V = 9 VDiameter, d = 0.70 mm = 0.0007 mRadius, r = d/2 = 0.00035 mLength, l = 6 cm = 0.06…

Q: 15. Resistors with only 3 strips will have a tolerance of * 10 percent O 20 percent O 5 percent O 1…

A: According to the guidelines, if more than one question is given then only the first one is allowed…

Q: Explain the Resistivity and conductivity of a material?

A: Required : To explain resistivity and conductivity of a material.

Q: 3. Consider the following scenario: A civil engineering student measures the resistivity of…

A: The resistivity for a wire of length L, area of cross section A and resistance R is given by the…

Q: Question 38 of 50 Which of these is a device that DOES NOT show Ohm's law? Select the correct…

A: For the ohm's  law V = IR  The device Follow  this rule is called ohmic device. Here , Only last…

Q: A resistor made of Nichrome wire is used in an application where its resistance cannot change more…

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Q: A wire of length / and cross-sectional area A have resistance R, conductance G, resistivity p, and…

A: Solution: Consider the following relations for:→Resistance, R =ρlA      - 1     where, ρ is…

Q: 5. Find the resistance of a cylindrical shape copper wire with radius 25 mm which is shown in the…

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Q: Calculate the ratio of the resistance of 14.0 m of aluminum wire 2.5 mm in diameter, to 25.0 m of…

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Q: An aluminum wire 1.291 mm in diameter (16-gauge) carries a current of 4.5 amps. Overall Hint Review…

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Q: R=1500 L www %3D Questions: ) Vd = ? %3D V= 12.0 v 2) wire Lz 30 cm -6 r= 1.888 x lo°m h= 1,264 x…

A: Let I denotes the current, V denotes the voltage, and R denotes the resistance. Then, the current is…

Q: 34 - The value is the resistivity at some reference temperature T and is usually taken to be…

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Q: Below are typical values of resistivity for various samples of water. Suggest reasons for the wide…

A: Conductivity is inversely proportional to the resistivity, we know,…

Q: "wire table" states that 12-gauge copper wire at 20°C has a diameter of 2.053 mm, a cross-sectional…

A: Resistance for any conducting wire is given by the equation R=ρLAρ is the resistivity of the…

Q: What are the units of the following quantities:   Conductivity σ :   Current Density J :

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Q: Describe the physical quantity electrical resistance of a wire made from a given material, length L,…

A: Answer:-  Electrical Resistance (R) of a wire depends upon the length (L) and area of cross section…

Q: The figure below shows a cross section of half cylindrical conductive material of o=3 x 10' S/m,…

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Q: What is the equivalent resistance of the group of resistors shown above? 42 N 40 N 30 N 45 N

A: As the resistors 30 Ω and 45 Ω are connected in parallel, so the equivalent resistance is given as,

Q: A current i (conventional current) flows through a ohmic resistance R as shown below. As the current…

A: A current i flows through a ohmic resistance R. As the current flows to the right, (a) The voltage…

Q: Predict the effect of temperature of the conductor on the drift velocity of electrons. a) Drift…

A: D

Q: A 16.0-2 platinum wire at 20.0°C with a temperature coefficient of resistivity of 3.90 × 10–3 (°C)-I…

A: The resistance at temperature Tf=80°C is calculated by using the temperature dependent resistance…

Q: What is an ohmic resistor? Give one example of ohmic resistor.

A: Ohmic resistors obey Ohms law.Write the expression for Ohms’ law

Q: Pure aluminum is malleable, which means that it can be pounded or stretched into different shapes.…

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Q: 5. Find the resistance of a cylindrical shape copper wire with radius 25 mm which is shown in the…

A: Given: Resistivity of copper wire (ρ) = 1.7 x 10-8 ΩmRadius of copper wire (r) = 25 mm = 0.025…

Q: Material Aluminum Copper Gold Iron Platinum Silver Tungsten Problem Resistivity (2.m) 2.65 x 10-8…

A: According the question data provided in the question. m=398 grams T1=12 °C T2=100 °C { Boiling…

Q: 5. A voltage of 110 V is across a 5 %, 20 k2 resistor. The range of current must be in 5.24 mA to…

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