An iron wire has a diameter 3.65 mm and resistivity 9.71x 10-8 Qm. What will be the length of this wire to make a resistance of 100. What will be the new resistance, if the radius is doubled? (a) Length of the wire (in m) = %3D (b) Resistance of the wire (in 2 =

Q: What is the resistance of copper wire that has a length of 1 kilometer and a diameter of 0.505 mm?

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Q: Of what material is a wire made, if it is 25.0 m long with a 0.100 mm diameter and has a resistance…

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Q: As discussed in the chapter, a thermistor is a device whose resistance varies with temperature. At…

A: V=Voltage=1.2 VR=Resistance=10  kΩ

Q: You have a simple circuit consisting of a battery and a lightbulb (you can imagine that this circuit…

A: Answer  Here, we have a simple circuit Consisting of a battery and…

Q: A miliammeter has a resistance of 10 2 and has a range of 0.25 mA. How will you convert it into a…

A: To Convert: Miliammeter into voltmeter Given: Resistance of miliammeter (G) = 10 ohm Voltage (V) =…

Q: What is the diameter of a 1.00-m length of tungsten wire whose resistance is 0.38 Ω ?

A: The resistance of a piece of metal wire is given in terms of the resistivity of the metal as R=ρLAρ…

Q: When connected in parallel, two resistors have an equivalent resistance of 119 Q. The same two…

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Q: An iron wire with a diameter of 0.80mm will have a resistance of 0.40 Ohms. What resistance will an…

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Q: A certain wire has a resistance of 140 Ω. What is the resistance of a second wire, made of the same…

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Q: You measure an object's resistance (with an ohmmeter or multimeter), and get 120 Ω.  Then you…

A: As we can see from diagram the actual resistance of object must be equal to  Resistance in first fig…

Q: A platinum wire has a resistance of 79.6 ohms at 28oC. At what temperature will the resistance of…

A: initial temperature = t1 = 280 c initial resistance = R1 = 79.6 Ohms final temperature = t2 = ?…

Q: The resistance of a bulb filament is 1002 at a temperature of 100°C. If its temperature coefficient…

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Q: What is the internal resistance of an automobile battery that has an emf of 12.0 V and a terminal…

A: the output voltage expression is,

Q: What is the diameter of a 1.00-m length of tungsten wire whose resistance is 0.12 Ω

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Q: a copper wire has diameter 0.5mm and resistivity of 1.6×10^-8 what will be the length of the wire to…

A: The equation for resistance is, R=ρlAsince A=πd24R=ρlπd24R=4ρlπd2 thus, the length is, 10…

Q: A wire 6.80 m long with diameter of 2.05 mm has a resistance of 0.0250 Ω. Find the resistivity of…

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Q: Consider a cylindrical ohmic wire with the following dimensions: length = 10.0 m, radius = 0.05 m.…

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Q: An iron wire has a diameter 1.6 mm and resistivity 9.71x 10-8 m. What will be the length of this…

A: Given that :diameter :d= 1.6 mmHence,radius : r= 0.8 mmCross-sectional area : A=πr2…

Q: Two resistances R1 = 10 ΩΩ and R2 = 20 ΩΩ are in parallel. What is the equivalent resistance?

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Q: Calculate the current through a 10.0 m long nichrome wire with a diameter of 0.642 mm if it is…

A: Given data *The length of the nichrome wire is l = 10.0 m *The diameter of the wire is d = 0.642 mm…

Q: A piece of Nichrome wire has a radius of 6.5 x 10-4 m. It is used in a laboratory to make a heater…

A: Given: Radius of the wire, r = 6.5×10-4 mPower , P = 3 ×102 WPotential, V = 120 V   Solution: We…

Q: What is the diameter of a 1.00-m length of tungsten wire resistance is 0.38 Ω?

A: Given : Length of the tungsten wire is 1.00 m Resistance of the wire is 0.38  Ω

Q: An electrician plans to cut a copper wire with more than 10Ω resistance (p=1.724*10-8m). The radius…

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Q: A cylindrical conductor has resistance of R0 = 950 Ω. It has length L, radius of the cross section…

A: Resistance of the cylindrical conductor is Ro = 950 Ω Length of conductor = L Radius of…

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Q: The resistance of a resistor at 8 degrees Celsius is given as 34 ohms. Determine the resistance, in…

A: Given The initial temperature of resistor is Ti=8°C. The initial resistance of resistor is R0=34 Ω.…

Q: A 9.0-V battery is connecte the battery per minute? Answer: electror

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Q: What is the diameter of a 7 m length of tungsten wire whose resistance is 3 ohms? Give your answer…

A: Data Given ,  Length of the wire ( L ) = 7 m  Resistance of the wire ( R ) = 3 ohms  Let , The…

Q: The resistivity of this material is 1.52 ohms. What is the resistance?

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Q: Two wires with the same resistance have the same diameter but different lengths. If wire 1 has…

A: Given Information:- Resistance and diameter of the two wires are same. Resistivity of copper is…

Q: The resistance of gold wire used in circuits is usually negligible compared to the components in the…

A: Given: Length,L=47.1cm=47.1×10-2mArea,A=1.7mm2=1.7×10-6m2Resistivity,ρ=2.35×10-8Ωm In an electrical…

Q: Wire 1 has a resistance of 0.3 ohms. Wire 2 is made of the same material as wire but is three times…

A: Given information:Resistance of the wire 1 = 0.3 ohmLength of wire 1 be “l”The diameter of wire 1 be…

Q: You have a simple circuit consisting of a battery and a lightbulb (you can imagine that this circuit…

A: Let V denote the potential difference provided by the battery. Let I denote the current flowing…

Q: Illustrate the problem and complete solution. 1.) A 0.20 kg mass is tied at the end of a 0.25 m…

A: Given:    m= 0.20 kg    L= 0.25 m                 a ω= 50 rpm      ω=  9050 rps = 1.8 rps      ω=…

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.