A 200 m long aluminum wire has the same resistance and cross-sectional area as a carbon wire. What is the length of the carbon wire? Given:
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- During the manufacture of wire, the cross section can be decreased, and the length increased, by pulling the wire through a hole (in what is called a die) that is smaller than the wire’s initial cross-section. a. If the wire is stretched to 4 times its original length, by what factor does its resistance increase? fR = b. If the wire is stretched to 6 times its original length, by what factor does its resistance increase? fR =Suppose you wish to fabricate a uniform wire out of 1.25 g of copper. If the wire is to have a resistance R = 0.760 2, and if all the copper is to be used, find the following. (a) What will be the length of the wire? m (b). What will be the diameter of the wire? Enter a number. differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. mm Need Help? Read It Watch it Submit AnswerTwo steel conductors are bent into rectangular prisms with square bases of lengths a and, where /-2s. If the thin prism has a length of L-10s and the thick prism has a length of Ladda; compare the resistances of the two conductors: Select one: II a. The thicker conductor has smaller resistance b. The thinner conductor has smaller resistance c. They have equal resistances d. We cannot answer the question with the information provided
- The batteries have emfs of E1=9.0V and E2=12.0V and the resistors have values of R1=28Ω, R2=65Ω, and R3=39Ω. Determine the magnitudes of the currents in each resistor shown in the figure. Ignore internal resistance of the batteries? Determine the directions of the currents in each resistor. Ignore internal resistance of the batteries?Al What is the diameter of a 2.50 m length of tungsten wire whose resistance is 0.38 ?Multiple-Concept Example 9 reviews the concepts that are important to this problem. A light bulb is wired in series with a 117-0 resistor, and they are connected across a 120.0-V source. The power delivered to the light bulb is 21.3 W. What is the resistance of the light bulb? There are two possible answers. Give the larger of the two. Light bulb R2 P V
- a) A lightbulb has a resistance of 150 Ω when operating with a potential difference of 160 V across it. What is the current in the lightbulb (in mA)? b) What If? What would be the current in the lightbulb (in mA) if it were used in Japan, where the potential difference across it would be 100 V?Don't use chat gpt It Chatgpt means downvoteWires 1 and 2 are made of the same material. Wire 2 has 1/3 the length and 1/3 the diameter of wire 1. What are the ratios R₂/R₁ of the resistances of the wires? A) R₂/R₁ = 9 B R₂/R₁ = 3 C) R₂/R₁ = 1/3 D R₂/R₁ = 1/9 E None of the other answers is correct