A silver wire has a resistance of 2.1 2 at 27.5 °C, and a resistance of 2.7 2 at 100 °C. Determine the temperature coefficient of resistivity of silver.

Q: potential

A:

Q: What is the resistivity of an unknown material that is made into a 5.0 m long, 0.62 cm x 0.62 cm…

A: Given data:  Length (L) = 5.0 m Area (A) = 0.62 cm × 0.62 cm Resistance (R) = 8.0 Ω Required: The…

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

A:

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

A: The resistance of a conductor changes with the change in temperature of the conductor as, Here, is…

Q: The copper wire with diameter 0.7 mm and 80 m long is connected to 15 V battery. Calculate the…

A: Given data:  Diameter (d) = 0.7 mm = 0.7×10-3 m Length (L) = 80 m Voltage (V) = 15 V Resistivity (ρ)…

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

A:

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: A potential difference of 1.5 V is applied across a tungsten wire of length 2.4 m and cross-…

A: According to company policy, only first question will be answered here. Please post the rest…

Q: A potential difference of 14 V is found to produce a current of 0.38 A in a 3.3 m length of wire…

A: Answer :-  Given  Potential difference (V) = 14 v  Current (I) = 0.38 A  Length of a wire (l) = 3.3…

Q: A platinum wire is used to determine the melting point of indium. The resistance of the platinum…

A: The required expression for the melting point temperature of indium,

Q: Silver has a resistivity of 1.59x10-8 at 20 oC. What is its temperature coefficient of resistance at…

A:

Q: When 100.0 V is applied across a 5-gauge (diameter 4.621 mm) wire that is 10 m long, the magnitude…

A: Given: Find  the resistivity of the wire Now,

Q: The resistance of a copper wire is measured to be 3.80 Ω at 21.6°C. What is the resistance of this…

A: Write down all the given parameters and formula

Q: An aluminum wire has a length of 1.50 m and a cross sectional area of 0.460 mm2. If the resistivity…

A: Given Data   The length of the aluminium wire is l = 1.50 m The cross sectional area of the wire is…

Q: Find the resistance of a cylindrical shape copper wire with radius 25 mm -8 which is shown in the…

A:

Q: A uniform cross-section of silver has a resistivity of 1.54 x 10-8 2 m at room temperature. For an…

A: Given data:  Resistivity of silver (ρ) = 1.54 × 10-8 Ω.m Electric field (E) = 1 Volt/cm Density of…

Q: A potential difference of 14 V is found to produce a current of 0.38 A in a 3.3 m length of wire…

A: (a) As resistance=R = V / I         =14 / 0.38 R = 36.84Ω

Q: The number of electrons per unit volume in gold is 6x10 e/m. The resistivity of gold is 2.5×10 *Am.…

A:

Q: A conducting cable of length 23.5 m and radius 0.500 mm is connected to the battery providing…

A:

Q: When a current of 0.218 A is present in a wire 20.0 m in length with cross-sectional area 8.19 x 10…

A:

Q: When 115 V is applied across a wire that is 10 m long and has a 0.30 mm radius, the magnitude of the…

A:

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 potential difference of 11 V is found to produce a current of 0.40 A in a 3.3 m length of wire…

A:

Q: The copper windings of a motor have a resistance of 46 Ω at 20oC when the motor is idle. After the…

A: Initial resistance of copper windings (r) = 46 ohm initial temperature of the copper windings (t) =…

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: By what factor is the resistance of a copper wire changed when its temperature is increased from…

A:

Q: Copper has a resistivity of 1.7 x 10-º0 m. A wire of diameter 1.5 mm and length 25 m is connected…

A: Given: The resistivity of the wire is 1.7×10-8 Ω·m. The length of the wire is 25 m. The diameter of…

Q: A spool of copper wire 200 m long and with a diameter of 0.320 mm is at 20.0°C. For copper, the…

A:

Q: A 2.0 mm diameter iron wire ( resistivity, ρ = 9.7 x 10–8 Ω-m) carries a current of 2.5 A. Determine…

A: Given value--- diameter = 2 mm. resistivity = 9.7 × 10-8 ohm m. current = 2.5 Amp. length = 20 m.…

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: A certain laboratory experiment requires an aluminum wire of length of 35.0 m and a resistance of…

A:

Q: A piece of material is tested and, at 25oC, it has a resistance of 153Ω. The thermal coefficient of…

A:

Q: A current of 3.70 A is carried by a 250 m long copper wire of radius 1.25 mm. Assume an electronic…

A:

Q: A coil of wire has a resistance of 36.2Ω at 26 °C and 61.7Ω at 67 °C. What is the temperature…

A:

Q: A given copper wire has a resistance of 5.20 2 at 20.0°C while a tungsten wire of the same diameter…

A: Given data: Temperature is, T=20∘C. Resistance of copper at 20∘ is, R1=5.20 Ω. Resistance of…

Q: A conductor has a diameter of 2.59 mm. How many meters of this material are needed to yield a…

A: Resistivity of the conductor is ρ=1.77×10-8 Ω/m Diameter of the conductor d=2.59×10-3 m So, radius…

Q: A copper wire has a length of 34.0 m and a resistance of 3.60 2 at 20.0°C. Assuming a circular…

A: Length of wire (L) = 34 m Resistance (R) = 3.60 ohm Temperature (T) = 20oC Resistivity of copper =…

Q: A potential difference of 14 V is found to produce a current of 0.45 A in a 3.8 m length of wire…

A: We know that Resistance  R=V/I  And resistivity p=RA/L

Q: A 2.0 mm diameter iron wire ( resistivity, p = 9.7 x 10- 0-m) carries a current of 2.5 A. Determine…

A: Solution: Given that diameter =  2mm resistivity = 9.7x10-8 ohm m current = 2.5 A length = 20 m to…

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

A: Given data *The given room temperature is T0 =  20° C *Aluminium resistivity is two times the…

Q: A conductor has a cross-sectional area of 2.3x106 m2 and the number of free electrons per unit…

A: To find the drift speed

Q: An aluminum wire has a length of 1.50 m and a cross sectional area of 0.480 mm2. If the resistivity…

A:

Q: A conductor has a cross-sectional area of 2.3x 10P m and the number of free electrons per unit…

A:

Q: A gold wire of 0.500 mm diameter has 8.50 × 1028 conduction electrons per cubic meter. If the drift…

A: Given data:  Diameter (d) = 0.500 mm = 0.500×10-3 m Number of electrons per cubic meter (n) =…

Q: A silver wire has a length of 1.50 m and a cross sectional area of 0.360 mm2. If the resistivity of…

A:

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

A: Given : Rcu = Ral Lcu = Lal dal = 3.23 mm  ρcu = 1.72 × 10-8 Ωm ρal = 2.75 × 10-8 Ωm

Q: The temperature coefficient of resistivity for copper is 0.0068°C^-1. If a copper wire has a…

A:

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.