TABLE 22.1 Resistivities of materials Resistivity (N •m) Material Copper 1.7 × 10-8 Aluminum 2.7 × 10-8 -8- Tungsten (20°C) 5.6 X 10–8 Tungsten (1500°C) 5.0 × 10-7 Iron 9.7 × 10–8 Nichrome 1.5 × 10-6 Seawater 0.22 Blood (average) 1.6 Muscle 13 Fat 25 Pure water 2.4 X 105 Cell membrane 3.6 X 107

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A: (a)Formula for the resistance is:

Q: A 12-V battery causes a current of 0.55 A through a resistor. Part A What is its resistance? Express…

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Q: A 8.5 V potential difference is applied between the ends of a 0.80-mm-diameter, 90-cm-long nichrome…

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Q: The terminals of a 0.70 V watch battery are connected by a 60.0-m-long gold wire with a diameter of…

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Q: A long wire with a radius of 0.400 cm carries a current. The porential difference across a 3.60 m…

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Q: a. Suppose a cylindrical wire is 1.00 meters #4 Resistance and Ohm's Law in length with a radius of…

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Q: What is the drift speed?

A: Given: Electric field is E=1.7×10-3 V/m Current in wire is I=3.5×1017 elec/s Diameter of wire is…

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…

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Q: A 20.0-m-long cable consists of a solid-inner, cylindrical, nickel core 12.0 cm in diameter…

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Q: When running on its 11.4 VV battery, a laptop computer uses 8.3 WW. The computer can run on battery…

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Q: A 24 volt battery is connected to a light bulb that has a resistance of 30Ω. a. How much current…

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Q: A 217-ohm lamp, a 124-ohm lamp, and a 323-ohm lamp are connected in series and placed across a…

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Q: You are given a wire of length I and cross-section area A. You put a potential difference of V…

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Q: An electric fence, the fence-wire is set to 60 V while the ground is always 0.0 V. If we can think…

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Q: A current of 12 A flows through an electric heater operating on 120 V. a. What is the heater’s…

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Q: A copper transmission cable 200 km long and 12.5 cm in diameter carries a current of 150 A. For…

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Q: An aluminum wire 1.291 mm in diameter (16-gauge) carries a current of 3 amps. Overall Hint a. What…

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Q: A current from a 12 V battery passes through a 10.0 m long, 0.25 mm diameter copper wire. a. What is…

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Q: In the circuit pictured, the resistors have values of R1 = 140 Ω, R2 = 143 Ω, and R3 = 141 Ω, and…

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Q: Part A What is the resistance of a 2.0 m-long copper wire that is 0.50 mm in diameter? Express your…

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Q: Two batteries and a resistor are connected as shown. E1 = 20 V, E2 = 8.0 V, and R = 2.0 0. What is…

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Q: la. This resistor has a resistance of 48002, and 32mA of current flows to the left into it. The…

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Q: 1. Shs 10 , R2 Ry R3 RA 3.

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Q: An electrical conductor designed to carry large currents has a circular cross section 2.40 mm in…

A: Given: The diameter of the wire is 2.40 mm or 2.40×10-3 m.           The length of the wire is 14.8…

Q: A resistor has four color bands: brown, orange, yellow, and Gold. What is its resistance? b.  A 60…

A: Here,  Brown → 1Orange →3Yellow → 105Gold → ±5% Therefore, the resistance is 130,000±5% ohm

Q: The heater element of a 120V toaster is a nichrome wire with length of 5.4 m, and diameter of .48…

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Q: A2.2 kN and a 4.0 kl resistor are connected in parallel; this combination is connected in series…

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Q: An aluminum wire 2.053 mm in diameter (12-gauge) carries a current of 1.5 amps. Overall Hint a. What…

A: The number density is found as n=ρM×NA Here ρ,M,NA are mass density, molar mass and Avogadro number…