1. Wires A and B are made for the same material and have the same length. However, the diameter of wire A is thrice the diameter of wire B. wire a has a resistance of 12.0 ohms. what is the resistance of wire B?

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

A:

Q: What is the resistance (in units of 0) of a wire made of a material with a resistivity of 3.2 x 108…

A:

Q: 20. A conductor of cross-sectional area A, length l, and resistivity ρ has resistance R. What is the…

A:

Q: An insulated extension cord is made of a 1.5-meter long copper rod with a diameter of 2.3…

A: Given: The length of the wire is 1.5 m. The diameter is 2.3 mm.

Q: the resistance

A:

Q: 15.Sketch I-V graphs for the following cases and identify which graph corresponds to which type of…

A:

Q: 2. An aluminum (p=2.7x10-2m) wire has a cross-sectional area of 5.1x107 m?. A. If the wire is…

A: (A) Let A be the cross-sectional area of the aluminium wire. Write the expression for the circular…

Q: A carbon resistor is to be used as a thermometer. On a winter day when the temperature is 32°F, its…

A: Given Initial resistance R0 = 220 ohm Final resistance R = 214 ohm Initial temperature To = 32oF…

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: Resistance of potentiometer wire is 12 per meter. A Daniel cell of e.m.f. 1.08 v balances at 216 cm…

A: To find-(1) Current through wire=?(2) Balancing length (l2)=?Given-Resistance per meter=1 ohmE1=1.08…

Q: A thermometer made of Platinum has a resistance of 502 at 20 C what is the measured temperature (in…

A: Given:- R1 = 50Ω   , t1 = 20oC  R2 =79.2Ω  , t2 = ? temperature coefficient (α) = 3.92 *10-3 C-1

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: 1. Wires A and B are made of the same material and have the same length. Howeve the diameter of wire…

A:

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: The terminals of a 0.70 V watch battery are connected by a 120-m-long gold wire with a diameter of…

A: This problem can be solved using ohm's law and resistance of metals formula. Given data , Voltage (…

Q: 7. Calculate the resistance of a 30.0 meter silver wire with a radius of .03 m. Hint: the wire is a…

A: This question can easily be solved by applying a basic concepts of resistance of the wire and…

Q: A 100-m-long copper wire of radius 0.24 mmmm and mass 160 g is connected across a 1.5-V battery. The…

A: Given: length, l=100 m radius, r=0.24 mm=0.24×10-3m voltage, V=1.5 V resistivity, ρ=1.7×10-8Ω⋅m

Q: 4. Wire A and B are made of the same material and have the same length. However, the diameter of…

A: Given : da = 3 db  Ra = 12 ohm

Q: a. Of what material is a wire made, if it is 10 m long with a diameter of 0.25 mm and has a…

A:

Q: 3. The resistance of a copper wire with circular cross section of radius a and length L is R. If we…

A:

Q: Two wires, A and B, are made from the same material. The length of A is twice the length of B, and…

A: The resistance is given  by the formula.R=ρlAWhere, l is length of the conductorA is cross section…

Q: An electric flat iron draws a current of 15 A when connected to a 110 V line. a. Assuming that the…

A:

Q: copper ros is 3 m long and 4 mm in diameter. Compute its resistance if the resistivity of the…

A:

Q: 3. A 10.0 m long RG-6 coaxial cable has an inner core of copper with a diameter of 7.112 mm. a.…

A:

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: 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 thermometer made of Platinum has a resistance of 50 at 20 C, what is the measured temperature (in…

A:

Q: Current and Resistance Problem 9:   An extension cord that has a length of 9.65m is made from wire…

A: Please see the attached image for the solution.  If there are queries or if the image is not…

Q: 1. An unknown alloy is subjected to an electric field of 25 V/m, and has a current density of 1.45 ×…

A:

Q: Two wires of the same material and with the same length have different diameters. Wire A has twice…

A:

Q: A small bulb delivers an electrical power of 7.5 W when operated at 125 V. The tungsten filament has…

A: Power = 7.5 WV = 125 volts Using P = V2/RR = 1252 /7.5R = 2083.33 ohm α = 4.5 * 10-3

Q: Two wires, A and B, are made of the same material. The length of A is four times the length of B.…

A: Let the length and crossectional area of wire B is lB and AB respectively then, Length of Wire A: lA…

Q: - C are 2.0 x 10-6 n·m and 1.00 wires are joined as shown in the F

A:

Q: The resistivity of gold is 2.44 × 10-º Q • m at room temperature. A gold wire that is 0.9 mm in…

A: Given information: The resistivity of the gold (ρ) = 2.44×10-8 ohm .m  The diameter of the gold wire…

Q: A copper wire has a resistance of 0.5000at 20.0°C, and an iron wire has a resistance of 0.525 at the…

A: Given that-Initial resistance of the copper wire, R0Cu= 0.500ΩInitial resistance of the iron wire,…

Q: Material= Lead Resistivity (Ω.m) = 22 x 10- 8 a) Calculate the conductivity of your material.…

A: *We'll answer only the first three sub-parts since the sub-parts to be answered were not specified.…

Q: . A certain lightbulb has a tungsten filament with a resistance of 19.0 N when at 20.0°C and 140 N…

A:

Q: Calculate the resistance of a 1.2 meter copper wire with a cross-sectional area of 1.0 x 10m?.

A: as per our guidelines we are supposed to answer only one question. Kindly repost other questions as…

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.