substation bus bar is made up of 1.5 inches diameter round copper bars 15 ft. long. What is th stance of each bar if resistivity is 1.724 x106 ohm-cm? (1 ft =12in and 1 in =2.54cm)

Q: What net charge passes through the cross-sectional area of a wire in 10 minutes if the current in…

A: Given data The time interval is given as t = 10 min. The current in the wire is I = 39.7 mA.   The…

Q: A handheld electric fan operates on a 3.00-V battery. If the power consumed by the fan is1.77 W,…

A: Voltage, V = 3 V  Power, P = 1.77 W

Q: A piece of wire of length 48.9 cm made from a material of resistivity 1.6 ohm-metre was used to…

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Q: What is the voltage across the terminals of a 42 ohms resistor that has 0-091 A of current flowing…

A: Given data :      Resistance  =  R       Current   =  i      To find :  Voltage

Q: What is the resistance of an aluminum wire that is 10m long and has a diameter of 3.00 mm?

A: Given Data: Wire length, l=10 m Wire diameter, D=3 mm; therefore, radius R=D2=32=1.5 mm=1.5×10-3 m…

Q: 10. Calculate the (a) resistivity and the (b) conductivity of a material that has a length of 15 m…

A: Given that length of the material and cross sectional area of the material and also given the value…

Q: A wire that is 24m long and has a radius of 0.34 mm has a resistance of 5.77 What is the resistivity…

A: The length =24m  The radius=0.34mm  The diameter =0.17 To find the resistivity of the material

Q: A circuit is connected to a potential difference, V = 26.4 volts, at a power P = 2.2 watts. What is…

A: Given, Potential difference, V = 26.4 W Power,  P =2.2 W

Q: 14EX: a copper wire ,area cross section is 4mm²,and length 2m, resistivity 1.7x10- 2.m at 20 °C,…

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Q: 1. Compute the resistance of a hardened copper rod 2 meters long and 8 mm (8 x 10° meters) in…

A: Length= 2m Diameter= 4 mm

Q: A water-tank heater, with a resistance of 7 kN, is attached to a battery providing a voltage of 7 V.…

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Q: What is the resistivity of a wire if it is subiected to a 2.50 X 102 V/m electric field, and has a…

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Q: A lightning stroke lasts  0.01 s  and involves a flow of  306 C.  What is the current

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Q: 1. Compute the resistance of a hardened copper rod 2 meters long and 8 mm in diameter if the…

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Q: What is the resistivity (in x 10^-8 ohm -meter) of a material with diameter of 0.70 mm and with…

A: Resistivity is the resistance of an object per unit length and per unit cross sectional area at a…

Q: 6. A0.500-meter length of wire with a cross-sectional area of 3.14 x 10 -6 meters squared is found…

A: According to company guidelines we are allowed to solve only one problem, please do post other parts…

Q: Write an equation relating the ratio delta Vbat / Ibat  to R1, R2, and R3, where R1, R2, and R3 are…

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Q: Determine the resistance of a bus bar made of copper if the length is 10 meters long and the cross…

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

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Q: What is the internal resistance of a dry cell which has an emf of 1.55 Volts if it has a short…

A: E.m.f of the circuit is E = 1.55 Volts Short circuit current is I = 22 A Suppose that internal…

Q: A 20-meter length of wire with a diameter of 3.0 mm is found to have a resistance of 3.12 ohms. What…

A: The resistivity of the wire. given, diameter(d)= 3.0 mmor , radiusr=1.5 mm=1.5×10-3 mresistancer…

Q: Code: COFFEE. A single-core cable has a conductor diameter of 13.5 mm and insulation thickness of…

A: Given: diameter of cable d= 13.5 mmthickness of insulation t = 8.2 mmρ = 7.5*108 MΩ-cmL=14km

Q: A 10-ohm resistor has a constant current, If 1.200 C of charge flow through it in 4 minutes what is…

A: Given data : Charge=q Time=t   Required : Current

Q: If 1.19 miles of 24-gauge copper wire has a resistance of 1.28 kΩ and the resistivity of copper is…

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Q: A 240 V clothes dryer draws a current of 15 A. How much energy, in KWH and in joules, does it use in…

A: Write the expression for power of the dryer .

Q: The electrical resistance in ohms of a certain thermometer varies with temperature according to the…

A: R = R0  [1 + α (T – T0 )] . . . . . . . . . . . (1)Here, R0 and T0 are the initial resistance and…

Q: In electrical theory, Ohm’s law states that I = V/R , where I is the current in amperes, V is the…

A: Given data The initial potential difference is Vo=110 V The initial resistance is Ro=50 Ω The final…

Q: A cable consists of 10 strands of gauge no. 10 copper wire with a diameter of 0.5m. What is the…

A: Given:- The diameter of the copper wire d= 0.5 m  The length of the wire L= 5 km= 5 X 103 m wire at…

Q: What resistance must be placed in a 20 ohm resistor to make the equivalent resistance 0.952 ohms?

A: Given: Total equivalent resistance, Req = 0.952 ohms Resistance, R1 = 20 ohms   To determine the…

Q: A total charge of 3.34 mC passes through a cross-sectional area of a wire in 3 s. What is the…

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Q: What is the magnitude of charge supplied by a 12 V battery in 2mins to lamp of power 60 Watts ?

A: Given: The electric potential is 12 V The time interval is 2 mins. The power of the lamp is 60 W.

Q: A certain batch of copper wire was found to have a conductivity of 95.5 pe cent at 20°C. What is its…

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Q: A lightning stroke last 0.05 s and involves a flow of 100 c. What is the current?

A: Given data:Flow of charge,  Q = 100 cTime, t = 0.05 s

Q: If the resistance of a 250 roll of wire is 1.87 ohms, what is the resistance of 2000 of this wire?

A: Here the resistance of a 250 roll of wire is 1.87 ohms,

Q: The resistance of platinum wire is 5.79 N. If 10 ampere current is flowing through that resistance…

A: Given      Resistance R=5.79 Ω     Current I=10 A    Time t=45 minutesInitial temperature of water…

Q: 1. A wire with a diameter of 0.001 in has an area of how many CM?. Round off your numerical answer,…

A: 1) The given diameter of the a wire is d = 0.001 in Formula used: Area of the circle = πR2…

Q: An appliance draws a current of 9.00A. How much charge flows in 5.0 minutes of operation? How many…

A: Given data: Current (I) = 9.00 A Time (t) = 5.0 minutes Required: Amount of charge (q) and number of…

Q: A cylindrical  resistor has a resistance of 289 Ohms. What is the resistance (in Ohms) if the length…

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Q: How much charges (measured in C) flowed through a wire for 1 hour if the current is measured at…

A: Write the expression for the charge. Here, Q represents the charge, I represents the current, and t…

Q: What is the resistance of a 18.0-m-long piece of 12.0-gauge copper wire having a 2.053-mm diameter?

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Q: In an experiment on muscle a voltage of 6.64 V is applied, resulting in a current of 57.1 mA.  What…

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Q: The conductance G of an object is defined as the reciprocal of the resistance R; that is, G = 1/R.…

A: Given data: Magnitude of current drawn is, I=440 mA=440×10-3 A. Voltage supply is, V'=3.0 V.

Q: A piece of wire of length 104.2 cm and cross- sectional area 278.1 cm² is made from a material of…

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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.