1.4. The resistance of a doped germanium crystal obeys the equation log R' = 4.697 – 3.917 log T. %3D (a) In liquid helium cryostat, the resistance is measured to be 218 N. What is the temperature?

Q: potential

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Q: Let's say you have a 20 cm long silicon wire, with a diameter of 4 cm. What current flows through…

A: Write the given values with suitable variables. L=20 cm=0.2 mr=4 cm2=0.02 mV=1000 Vρ=2300 Ω.m Here,…

Q: A potential is placed across a wire. When the potential is 300 V and the wire is 14.5 m long, the…

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Q: The resistance

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Q: A 14-gauge copper wire has a cross-section area of 2.081 mm². The resistivity of copper at 20…

A: The initial (20oC) resistance is, R1=ρLA=1.7×10-8 Ωm100 m2.081 mm210-6 m21 mm2=0.817 Ω

Q: Find the current density and drift velocity of free electrons when the particles travel on a copper…

A: Given that:a=1 mmi=40 An=6.0×1028 electrons/m3

Q: B. Calculate the cost of running a 75 W stereo for two days if the cost per hour is 70 centavos.

A: The total cost to run a device in a certain time is C = c×t, where C = total cost c = cost per hour…

Q: the resistance

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Q: certain laboratory experiment requires an aluminum wire of length of 22.0 m and a resistance of 5.00…

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Q: The resistance of the tungsten filament of an incandescent light bulb at 24 degC is 32 Ohms. If the…

A: Given:The resistance of the tungsten filament at T1=20°CResistance,R1=32ΩVoltage,V= 130…

Q: An aluminum wire with a diameter of 0.095 mm has a uniform electric field of 0.215 V/m imposed along…

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Q: What is the resistance (in units of 0) of a wire made of a material with a resistivity of 3.2 × 10-8…

A: Resistivity ῥ = 3.2*10-8 ohm . m Length L = 39.3 m Diameter = 0.50mm = 0.50*10-3m

Q: A thermometer made of Platinum has a resistance of 50 N at 20 C, what is the measured temperature…

A: Given data: Reference resistance Ro = 50 Ω Reference temperature To = 20 °C Resistance at…

Q: A certain lightbulb has a tungsten filament with a resistance of 22.4 N when at 20.0°C and 143 N…

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Q: stivity is 10° Q.m at 20 n °C) of the material

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Q: A certain lightbulb has a tungsten filament with a resistance of 18.4 when at 20.0°C and 141 2 when…

A: Given  Resistance, R= 18.4 ohm at 20°C   R = 141 ohm at temperature ,T

Q: What is the resistance (in units of N) of a wire made of a material with a resistivity of 3.2 × 10-8…

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Q: A thermometer made of Platinum has a resistance of 50 N at 20 C, what is the measured temperature…

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Q: A block of gold of volume 232 mm is used to make a wire 78.9 m long. What is the resistance (in 0)…

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Q: A copper wire with 4mm diameter, 2.0m length carries 6.0 ampere of current. Free electron density of…

A: Given, current passing through wire is, I = 6A length of wire, L = 2m free electron density, n = 8.5…

Q: A copper wire is (50 m) long, and has a cross-sectional area of (5 mm²). a/ Calculate the resistance…

A: Given: The length of the wire is 50 m. The cross-sectional area of the wire is 5 mm2.

Q: A thermometer made of Platinum has a resistance of 50 2 at 20 C, what is the measured temperature…

A: Given, Resistance (R1)= 50 ohms at 20 degrees Resistance (R2)=78.5 ohms  Temperature coefficient of…

Q: A wire 3.00 m long and 0.450 mm? in cross-sectional area has a resistance of 40.6 2 at 20.0°C. If…

A: We have the expression of Resistance values for conductors at any temperature (T°C):

Q: How much current would a 10 2 bread toaster draw when connected to a 120 V outlet? 75 W stereo for…

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Q: A silver wire has a length of 33.0 m and a resistance of 2.60 2 at 20.0°C. Assuming a circular…

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Q: 2. A copper wire of cross-sectional area 1.20 mm2 has a current of 6.90 A flowing along its length.…

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Q: The resistivity of certain metals becomes zero at :Select one а. О b. Very low temperatures .c Very…

A: From question: A metal's resistivity is a function of temperature; it rises as the temperature…

Q: 1.70 mm cylindrical rod of diameter 0.550 cm is connected to a power supply that maintains a…

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Q: Thermal energy is produced in a resistor at a rate of 129 W when the current is 3.81 A. What is the…

A: When a resistor is connected to a voltage source and current flows through the resistor, power is…

Q: What is the resistance (in units of Q) of a wire made of a material with a resistivity of 3.2 x…

A: Resistivity , ρ = 3.2 x 10-8  Ω m Length , L = 58.9 m Diameter , d = 0.5 mm To find = Resistance of…

Q: What is the fractional change in the resistance o R-R. Ro

A: GivenT1=20.2°CT2=51.2°C

Q: A copper wire has a length of 34.0 m and a resistance of 5.00 Q at 20.0°c. Assuming a circular…

A: Given- Length of copper wire l=34 m Resistance R=5Ω The resistivity of copper ρ=1.7×10-8 Ω-m

Q: An aluminum wire with a diameter of 0.105 mm has a uniform electric field of 0.235 V/m imposed along…

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Q: 1. A 12' hollow tungsten rod has a cross-sectional area illustrated below. At 150°C, the resistance…

A: GIven the information Length of the hollow tungsten rod = 12 ft Resistance of the tungsten rod at…

Q: 1. a) Find the electrical resistance of a 0.5 cm long, 22-gauge silver wire, if the electrical…

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Q: Silver at room temperature is found to have a resistivity of 1.59×108 №∙m. If the temperature i…

A: The resistivity which determines the resistance of a material to the flow of electric current will…

Q: A platinum wire with resistance 1.0 N at 20 °C is immersed in liquid nitrogen at -195.9 °C. If the…

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Q: Problem 1. A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 41.O N at…

A: solution as

Q: What is the resistance

A: Resistance of a  wire depends on its length , area of cross section  and resistivity of material .

Q: A wire 3.00 m long and 6.450 mm in cross-sectional area has a resistance of 380 at 20C. Ir s…

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Q: An aluminum wire with a diameter of 0.095 mm has a uniform electric field of 0.215 V/m imposed along…

A:

Q: A certain laboratory experiment requires an aluminum wire of length of 23.0 m and a resistance of…

A: Given data:  Length (L) = 23.0 m Resistance (R) = 2.20 Ω Resistivity (ρ) = 2.82×10-8 Ω.m Required:…