2. An insulated cord is made of 2.5 meters long aluminum rod with a diameter of 3.0 mm. what is the resistance of the extension cord?

Q: an aluminium rod with a square cross section is 1.3 m long and 2.6mm on edge.What is the resistance…

A: Given :          length , l= 1.3 m         Area , A=2.6x10-32=6.76x10-6m2 square cross-section…

Q: a. What diameter of copper wire [p = 2.65 x 10^-8 ohm.m) should be used so that a 22.0 m length will…

A: Part (a) Given: The resistivity of copper wire is ρ=2.65×10-8 Ω·m. The length of wire is L=22.0 m.…

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

A:

Q: The average resistivity of the human body (apart from sur face resistance of the skin) is about 5.0…

A: Given, The resistance between the hands can be given by the equation, Here, ρ is the resistivity…

Q: 3:08 l LTE Youngstown State University Edit Friday 9:58 AM 1. A conductor of radius r, length l and…

A: The expression for the initial resistance is,

Q: 4. The electrical resistance of human body in about 50 ko on average. If a person inadvertently…

A: Internal resistance (r)=2000 ohmsElectrical resistance of human body=50000 ohmsPower supply=20000 V

Q: A microwave oven uses 10 A of current when connected to a wall outlet that provides 120 V of…

A: Current, I=10 A Voltage, V=120 V

Q: 1. You have 4 iron (p=9.7x10-2m) cylinders. The resistance is measured between the 2 flat ends. The…

A:

Q: Two steel conductors are bent into rectangular prisms with square bases of lengths a and/, where…

A: Let the resistivity of the steel be ρ .   We have resistance of resistor with length L and…

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 200 m long aluminum wire has the same resistance and cross-sectional area as a carbon wire. What…

A:

Q: An insulated extension cord is made of a 1.5 m long copper rod with a diameter of 2.3 mm. What is…

A: According to question we need to find --- What is the resistance of the extension cord? If an…

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: 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: careless person accidentally grasps the terminals of a 20.0-kV power supply (Do NOT do this!). The…

A: Voltage, V = 20 kV = 20000 VExternal resistance, R = 9.5 kΩ = 9500 ΩInternal resistance, r = 2000…

Q: 1. Wires A and B are made for the same material and have the same length. However, the diameter of…

A: Note : We’ll answer the first question since the exact one wasn’t specified. Please submit a new…

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: A0. 20 m long metal rod has a radius of 1.0 cm and a resistance of 3.2 x 10* a. What is the…

A: Given data: Length (L) = 0.20 m Radius (r) = 1.0 cm = 0.01 m Resistance (R) = 3.2 × 10-5 Ω Required:…

Q: A wire with a temperature coefficient of resistance (a = 0.0075/°C) has a resistance of 6.28 2 at…

A:

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: Given : Length of copper wire is L             Resistance of wire = 10 ohms

Q: What is the resistance of the block measured between the two square ends?

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: 3. A wire is 200.0 cm long and has a resistance of 50.0 Q. This wire is cut into five equal parts.…

A: Length of wire, L = 200 cm Resistance of wire, Req = 50 Ω

Q: he resistance (in Q2) of

A:

Q: A1. A hair blower contains a heating element which has a resistance of 57 Ω. This heating element is…

A: Resistance, R = 57 Ω  Potential difference, V = 220 V

Q: A 2.0 cm long tungsten filament in a florescent light bulb has a radius of 0.3 mm. Assume constant…

A: Given: length (l) = 2 ×10-3 m Resistivity (p) = 5.6 × 10-8 ohm m i) Cross sectional area (A) =…

Q: Two aluminum wires have the same resistance. If one has twice the length of the other. What is the…

A: Let L be the length of the shorter wire and d be diameter.  Then, Length of the longer wire will be…

Q: Two masses m,-8 Kg and m,-6 Kg are connected with string and pulled with a force F=28 N that makes…

A:

Q: A small bulb is rated at 7.50 W when operated at 125 V. The tungsten filament has a temperature…

A: Power of bulb P = 7.50 W at voltage V= 125 V Temperature coefficient of resistivity α = 4.50 * 10-3…

Q: Q5. A 4.80-m length of 2.0-mm-diameter wire carries a 750-mA dc current when 22.0 mv is applied to…

A:

Q: A certain wire has a resistance of 100 Q. At what point along the length must the wire be cut so…

A: Resistance of a conductor is directly proportional to its length (L) and inversely proportional to…

Q: A steel trolley-car rail has a cross-sectional area of 56 cm². What is the resistance of 11 km of…

A:

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

A: The resistance for a varying temperature can be written as; R=Rref1+α∆There, Rref resistance at the…