A carbon resistor is to be used as a thermometer. On a winter day when the temperature is 2 ℃, the resistance of the carbon resistor is 215 Ω. What is the temperature on a spring day when the resistance is 213.5 Ω? (Take the reference temperature T0 to be 2 ℃ and resistivity coefficient of carbon to be 40 x 10-5 Ω-m.)

Q: A copper wire of 10 Q and length L. At what point along its length must the wire be cut out so that…

A: The resistance of the wire is directly proportional to the length of the conductor.

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

A: Given data: Radius R=19.8 cm=0.198m Dielectric constant k =2.16

Q: How much current flows thru a 6 Ω resistor in 4 minutes if it is connected to a 9V battery ?

A: Given : R = 6 Ω t = 4 minutes = 4 x 60 = 240 seconds V = 9 V

Q: Gold is the most ductile of all metals. For example, one gram of gold can be drawn into a wire 2.15…

A:

Q: A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 40.8 Ω at 20.0°C. If…

A:

Q: Two wires are identical, except that one is aluminum and one is copper. The aluminum wire has a…

A: Resistance for a wire can be found from R=ρLA where ρ is the resistivity of material, L is length…

Q: Suppose you have a 22 m long piece of copper wire with a 2.268 mm diameter and a resistivity of 1.72…

A:

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

A: It is given that ρ=3.2×10-8 Ω.ml=46.5 md=0.5 mm=0.5×10-3 m

Q: Consider a portable electric blanket that runs on a 4.5 V battery. If you use copper wire with a 1…

A: Given-Potential V=4.5 VDiameter d=1 mm=1×10-3mRadius r=d2=1×10-32=0.5×10-3mResistivity of the copper…

Q: 6 A nichrome wire and an aluminum wire, each with the same initial resistance, have the same change…

A: Given: Resistivity constant and thermal constant of Nichrome and aluminum wire are as follows,…

Q: A copper wire of length 2.5 m and cross-sectional area 2.4 x 10-7 m2 has a resistivity of 1.7 x 10-8…

A: Formula of resistance of wire is as follows: R=ρLA…

Q: Two wires are identical, except that one is aluminum and one is copper. The aluminum wire has a…

A: Given data:   Resistance of aluminium wire (RAl) = 0.344 Ω The resistivity of copper(ρcu) = 1.72 x…

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

A: Given data, Change in resistance =1.15% R0 at T0=20° C

Q: How long is a wire made from 100 cm³ of copper if its resistance is 4.00 ohms? The resistivity of…

A: Given data: The volume of the wire is V=100 cm3 The resistance is R=4.00 ohm The resistivity of…

Q: A nichrome wire and an aluminum wire, each with the same initial resistance, have the same change in…

A:

Q: What diameter must a copper wire have if its resistance is to be the same as that of an equal length…

A:

Q: What is the resistance of a 3.9 m  length of copper wire 1.3  mm  in diameter? The resistivity of…

A: The resistance of a wire is given by,              R = ρlA Here,      ρ is the resiticvity of the…

Q: A wire with resistivity 1.8 x 10-7 Ω m has a resistance of 0.45 Ω and a length of 2.0 m. What is the…

A: Given data: The given resistivity of wire is = 1.8×10-7 ohm-m The value of resistance is R = 0.45…

Q: consider a portable electric blanket that runs on a 6 V battery. If you use copper wire with a 0.5…

A: The given data are: V=6 Vd=0.5 mm=0.5×10-3 mP=20 Wρ=1.7×10-8 Ω.m

Q: The resistance of a uniform copper wire 50.0 meters long and 1.15 mm in diameter is 0.830 ohms at…

A: Given, Length of copper wire = 50 m Diameter = 1.15 mm Resistance = 0.830 ohms at 20 degrees

Q: A wire 300 m long has a resistance of 1.18 Ω and a cross-sectional area of 14 mm2. Of what material…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A given copper wire has a resistance of 5.02 Ω at 20.0°C while a tungsten wire of the same diameter…

A:

Q: An aluminum wire with a circular cross-section has a mass of 1.45 g and a resistance of 0.630 Ω. At…

A: Resistance of wire of area of cross section A and length l is given as R= ρl/A.

Q: 1. (10') (a) A resistor has four color bands brown, orange, yellow, and Gold. What is its…

A: NOTE: According to guidelines, I can give solution to first three questions. If you need help with…

Q: What is the resistance of a NichromeTM wire at 0.0 ∘C∘C if its resistance is 105.60 ΩΩ at 12.1 ∘C∘C?…

A: Given:  Given temperature, T = 12.1 0 C  Resistance at given temperature, R = 105.60 Ω Temperature…

Q: What is the resistance (in units of 2) of a wire made of a material with a resistivity of 3.2 x…

A:

Q: A 120 V potential difference is applied to a space heater whose resistance is 13.7 Ω when hot. At…

A:

Q: use a 0.50-mmmm-diameter copper wire as the heating element, how long should the wire be if you want…

A: We know that the Formula of the resistance in terms of the resistivity is given as  R = ρLA where R…

Q: If a certain metal has a resistance of 8.00 n at temperature 20.0 °C, what is its resistance at…

A: The variation of resistance with temperature is given by,

Q: A copper wire has a length of 38.0 m and a resistance of 4.10 Q at 20.0°C. Assuming a circular…

A:

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

A: Given- Resistivity ρ=3.2×10-8Ω.m Length L=49.1 m Diameter d=0.50 mm=0.50×10-3m Radius…

Q: 12 At 20 C, a copper wire has a diameter of 4 mm, a length of 20m, a resistivity of 1.7x10 ° Om and…

A: Resistance in the circuit connected to a voltage source is proportional to the length of wire L and…

Q: An aluminum rod has a resistance of 1.585 Q at 23.0°C. Calculate the resistance of the rod at…

A:

Q: What length of German silver wire, diameter 0.050 cm, is needed to make a 28 Ω resistor, if the…

A: We have to find the length(L) of German silver wire, diameter(d) 0.050 cm, is needed to make a 28 Ω…

Q: When a 1.0m length of metal wire is connected to a 1.5 V battery, a current of 8 mA flows through…

A:

Q: What diameter must a copper wire have if its resistance is to be the same as that of an equal length…

A: Resistance is defined as the obstruction faced by an electric current while moving across a…

Q: Some digital thermometers measure the current through a semiconductor to determine a patient's…

A: Given data:  Resistance = R Initial temperature (T0) = 37.0°C Final temperature (T) = 53.8°C…

Q: The temperature coefficient of resistivity for the metal gold is 0.0034 (C°)-1, and for tungsten it…

A:

Q: Consider a portable electric blanket that runs on a 4.5 V battery. If you use copper wire with a 0.5…

A:

Q: A copper wire has a resistance of 0.420 A at 20.0°C, and an iron wire has a resistance of 0.437 A at…

A:

Q: consider a portable electric blanket that runs on a 6 V battery. If you use copper wire with a 0.5…

A: Given data: Battery Voltage (V) = 6 V Wire Diameter (D) = 0.5 mm = 0.5×10-3 m Power (P) = 25 W…

Q: A gold wire has a length of 23.0 m and a resistance of 4.70 Ω at 20.0°C. Assuming a circular…

A:

Q: A carbon resistor is to be used as a thermometer. On a winter day when the temperature is 4.00 °C,…

A: The resistance dependence temperature and when the resistance is at a different temperate is given…

Q: A copper wire has a resistance of 0.465 N at 20.0°C, and an iron wire has a resistance of 0.483 1 at…

A: The resistance of the conductor changes with the change in the temperature of the conductor and the…

Q: Consider a portable electric blanket that runs on a 6 V battery. If you use copper wire with a 0.75…

A: Given data: Battery voltage (V) = 6 V Wire diameter (D) = 0.75 mm = 0.75×10-3 m Power (P) = 15 W The…

Q: Consider a portable electric blanket that runs on a 4.5 V battery. If you use copper wire with a 0.5…

A:

Q: The Iceberg Kid, infamous for imposing a deep freeze on whoever disagrees with him, discovers that…

A: Given: The thermal energy is 185 J. The time interval is 6.19 s. The operating voltage is 12.0 V.

Q: You have a 100 meter long hollow square copper wire that has a side length of 5mm. The diameter of…

A:

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.