A ribbon of nichrome (resistivity = 1.00 A 10-6 Ω m) with a rectangular cross sectional area of (0.25 mm x 1.00 mm) will be used as a heating element in a toaster. How long should this ribbon be, if the total resistance is intended to be 1.5?  Select one: a. 2.79 cm. b. 12.4 cm. c. 37.5 cm. d. 1.24 cm. e. 21.9 cm.

Q: QUESTION 5 A conductor has a resistivity of 3.50 × 10–5 2-m. What is the resistance of a piece that…

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A: Given data: Battery Voltage (V) = 6 V Wire Diameter (D) = 0.5 mm = 0.5×10-3 m Power (P) = 20 W…

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A: As per the answering guidelines we will solve only first problem. Please upload the other problems…

Q: Number 12 copper wire (diameter 0.08080 inch) used for electrical installations in homes. What is…

A: Given, Diameter of wire,d=0.08 inch=0.002 m Length,L=50 m Resistivity,ρ=1.7×10-8Ωm Current,I=6 A

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Q: Q.3): Answer the questions in (T) or (F), (only five): 1- The relative density is: p21= p2/p1- 2- V=…

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Q: 13. Five resistors are connected as shown in the diagram. The potential difference b [7.5 N, 3.3 A.…

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Q: How much electrical power is dissipated as heat when 7.00 A flow through a 62.0 m long piece of…

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Q: A particular wire has a resistivity of 1.5 x 10a- m and a cross-sectional area of 2.5 x 105 m2. A…

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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.

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

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Q: How long must a 0.68-mm-diameter aluminum wire be to have a 0.58 A current when connected to the…

A: diameter (d) = 0.68 mm current (I) = 0.58 A V = 1.5 volts

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Q: 7. a. In a car electrical system, the capacity of a storage battery is rated in ampere- hours…

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Q: A particular wire has a resistivity of 1.5 x 10sn- m and a cross-sectional area of 2.5 x 105 m2. A…

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Q: 2. A 12-V battery is connected to a 100-W resistor. How many electrons flow through the wire in…

A: Given data: The battery voltage V=12 V The resistance R=100 Ω The time  t=1 min =60 sec

Q: A ribbon of nichrome (resistivity = 1.00 A 10-6 N-m) with a rectangular cross sectional area and…

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Q: consider a portable electric blanket that runs on a 4,5 V battery. ıf you use copper wire with a…

A: The resistance of the wire can be obtained as P=V2RR=V2P=4.5V220W=1.0125Ω

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Q: Problem 11: Suppose a 1.25 x 102 MV lightning bolt has a current of 1.95 × 104 A. What is the power,…

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Q: A 100-W lightbulb has a resistance of about 12 Ω when cold (20 ∘C) and 124 Ω when on (hot). Estimate…

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Q: A ribbon of nichrome (resistivity = 1.00 A 10-6 Ω·m) with a rectangular cross sectional area and…

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Q: An iron wire has a diameter 1.6 mm and resistivity 9.71x 10-8 Qm. What will be the length of this…

A: The solution is given below

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Q: 23. Seven resistors are connected to a 22.0-V battery as shown below, with R1 = 4.00 , R2 = 5.00 ,…

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Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.