What length of German silver wire, diameter 0.050 cm, is needed to make a 28 Ω resistor, if the resistivity of German silver is 2.2 x 10-7Ω.m?

Q: 3. A nerve fiber may be approximated as a cylinder with a diameter of 1 × 10−5 ? and a length 2.0 ×…

A: The resistance of any object depends on the material used, resistivity, and on the geometrical…

Q: What length of copper (ρ = 1. 78 x 10−8Ωm) wire 1.2 mm in diameter is needed to make a 20-Ω resistor…

A: For copper wire, the resistance of a wire can be determined as, Here, ρc, Lc and A represent the…

Q: storage battery of a car has an emf of 12 V. If the internal resistance of the battery is 0.4 Ω,…

A: In the given question, EMF of the battery E = 12 V Internal resistance R = 0.4 Ω The amount of…

Q: The resistivities of copper and aluminum are 1.7 x 10-802m and 2.6 x 10-802m respectively. What…

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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: Consider a portion of a cell membrane that has a thickness of 7.50 nm and 1.9 um x 1.9 um in area. A…

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Q: Two wires are identical, except that one is aluminum and one is copper. The aluminum wire has a…

A: Resistance for a wire can be found from R=ρLA where ρ is the resistivity of material, L is length…

Q: Suppose you have a 22 m long piece of copper wire with a 2.268 mm diameter and a resistivity of 1.72…

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Q: 13- At 20 °C, a copper wire has a diameter of 4 mm, a length of 20m, a resistivity of 1.7×10-8 2m…

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Q: The figure below shows with two batteries and three resistors. The potential difference across the…

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Q: Wire C and wire D are made from different materials and have length L. = LD-1.0 m (Figure B). The…

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Q: Two wires are identical, except that one is aluminum and one is copper. The aluminum wire has a…

A: Given data:   Resistance of aluminium wire (RAl) = 0.344 Ω The resistivity of copper(ρcu) = 1.72 x…

Q: light bulb resistance, = 120 Q is connected across a voltage source, V = 240 V. How many electrons…

A: Using Ohm's law find current in the wire: V = I*R I = V/R Given that: V = 240 V, and  R = Resistance…

Q: resistor with a color code of violet-red-green-gold, what is the resistance value?   a. 72 ohms   b.…

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Q: Calculate voltages and currents for all 4 resistors

A: Let R1=4.7 kΩR2=10 kΩR3=20 kΩR4=4.7 kΩV=3.3 V

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: "You are asked to make a 13 2 resistor with a spool of wire of radius 7.5 × 10-5 m and resistivity…

A: given  R = 13 ohm  Resistivity = 1.68 × 10-8 ohm  r = 7.5×10-5 m  Using formula

Q: What is the resistance of a 3.4-mm length of copper wire 1.3 mm in diameter? The resistivity of…

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Q: A certain laboratory experiment requires an aluminum wire of length of 36.0 m and a resistance of…

A: The expression for the resistance of wire is, R=ρLA                               L=length of…

Q: When a potential difference of 12 V is applied to a wire 8.5 m long and 0.41 mm in diameter the…

A: Given : Potential difference, V = 12 V  Length, L = 8.5 m ; Diameter, D = 0.41 mm  Current, I = 2.8…

Q: A wire with a length of 3.0 m and a radius of 0.5 mm has a resistance of 0.50 Q2. What is the…

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Q: A block of carbon, 1.0 cm by 2.0 cm by 5.0 cm, has a resistance of 0.015 Ω between its two smaller…

A: The resistivity of carbon is 0.0051 ohm-m.

Q: An iron wire has a diameter 3.65 mm and resistivity 9.71x 10-8 Qm. What will be the length of this…

A: Formula of resistance is as follows: R=ρLA…

Q: How do you determine how much current will be flowing through a 40.0 m length of copper wire with…

A: Given:

Q: When a voltage difference is applied to a piece of metal wire, a current of 5.0 mA flows through it.…

A: The formula for the resistance of a metal is:

Q: The space between two metallic coaxial cylinders of length L = 0.520 m and radii a = 1.70 cm and b =…

A: (a) The resistance between the two cylinders is

Q: 25.69      A 1.50-m cylinder of radius 1.10 cm is made of a complicated mixture of materials. Its…

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Q: hat is the electrical resistance of a copper wire that has a radius of 0.80 mm and a length of 2.0…

A: Given: The radius of the wire is 0.8 mm. The length of the wire is 2 m. The resistivity of the wire…

Q: A carbon rod with a radius of 2.1 mm is used to make a resistor. What length of the carbon rod…

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Q: What length of copper (ρ =1.78 x 10−8Ωm) wire 1.2 mm in diameter is needed to make a 20-Ω resistor…

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Q: What color code corresponds to a resistance of 234x10 5 10% with a temperature coefficient of…

A: Value of Band 1 is 2 (Red) Value of Band 2 is 3 (Orange) Value of Band 3 is 4 (Yellow)  Value of…

Q: When a 1.0m length of metal wire is connected to a 1.5 V battery, a current of 8 mA flows through…

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Q: The temperature coefficient of resistivity for the metal gold is 0.0034 (C°)-1, and for tungsten it…

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Q: A gold wire with a circular cross-section has a mass of 1.30 g and a resistance of 0.770 Ω. At 20°C,…

A: Given data: Mass of the gold wire is, m= 1.30 g The resistance of the gold wire is, R = 0.770 Ω The…

Q: A 5.0 mm diameter wire carries a current of 10 A when the electric field is 1000 N/C. What is the…

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Q: Five identical light bulbs are connected to two power supplies, &1 = 40 V, and ɛ2 = 80 V. Each light…

A: Given data: The resistance of five identical bulbs is 10 ohm The first power supply is ε1=40 V The…

Q: Two conductors are made of the same material and have the same length. Conductor 1 is a solid wire…

A: R=p l/a where R is the resistance, p is the resistivity of the wire, l is the length and a is the…

Q: The resistivity of a 100 m long copper wire is 1.72 x 10-80m. If the cross sectional area of the…

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Q: A copper wire of length 0.5 m and area 2 x 10^9 m^2 is connected to a 12 V battery. What current…

A: Length of copper wire (L) = 0.5 m Cross-sectional area of wire (A) = 2 x109 m2 Potential difference…

Q: 12. A resistor has the following color code: red-red-orange-yellow-gold. What is its resistance? A.…

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Q: 00-gauge copper wire has a diameter of 9.266 mm and a resistivity of 1.72 × 10-8 Ω⋅m. Calculate…

A: Given data:  Diameter (D) = 9.266 mm Resistivity (ρ) = 1.72 × 10-8 Ω.m Length (L) = 1 km Current (I)…

Q: What is the resistance of the 289-m standard 12 -gauge copper wire that is typically used in wiring…

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Q: A ribbon of material with a rectangular cross sectional area of (0.25 mm x 1.00 mm), length 21.9 cm…

A: The resistance of a material is proportional to R∝lAR=ρl  A                  ρ=resistivity The…

Q: A current-carrying gold wire has a diameter of 0.94 mm. The electric field in the wire is 0.52 V/m.…

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Q: Remote control is connected to a stereo by 20 m distance by using copper wire. This copper wire has…

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