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: 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: Six copper wires have the listed lengths and cross-sectional areas. The resistance R of each segment…

A: Resistance of a given wire , R=ρLA First wire posses legth L and area of cross section A. So,…

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: 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: Which of the following assertions is NOT correcr? A The state of purity of a metal conductor…

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Q: Complete the table below by filling in the resistivity values of each material at 20°C. Material…

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Q: Wire D's cross-sectional area is 18 times the cross-sectional area of wire C. Each wire has the same…

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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: 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: How does the resistance of: i) a semiconductor ii) an alloy vary with temperature?

A: i) The resistance of semiconductor decreases with increase in the temperature. The resistance is…

Q: Explain the Resistivity and conductivity of a material?

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

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

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Q: 3. A conducting fluid is contained in the space between two concentric spherical electrodes. (A…

A: Current density is the current per unit area. Current remains same for both electrodes. Area of…

Q: 6. Nichrome wire has a length of 10 m and a cross-sectional area of ​​1 mm². A wire carries a…

A: According to Ohm's Law, V = IR, where V is the voltage across the conductor, I is the current…

Q: we would like to produce a 1000 ohm resistor from boron carbide having electrical conductivity (σ) =…

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Q: 3. Determine the resistor value, low and high tolerance (or range) for the following color-coded…

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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: 1. The resistance of a wire of length 10 m is 2 ohm. If the area of cross section of the wire is 2 x…

A: Resistance, R = 2 ohm Length, L = 10 m  Cross section area, A = 2×10-7 m2

Q: Question 15 An ideal LM741 op-amp and ± 10% tolerance resistors (from E12) are used in the amplifier…

A: Output voltage =4.9 vInput voltage =1 vFeedback resistance =39 kOhm

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: 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: 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: 3. Mei puts in her values and constructs a graph which gives her a slope of 0.0980244ª She then uses…

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