The resistance of a mile run of No. 1 copper wire telephone lie is measured and found to be 5.39 ohms? What is the resistance per 1000 ft.? What is the resistance of 3500 ft of No. 10 wire? What is the resistance of 60 ft.?

Q: Answer the two following questions: A. Compute the resistivity of the given material whose…

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Q: what are the four factors that affect the resistance of a substance?

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Q: What is the resistance of a conductor at 50ᵒ C if its resistance at 0 ᵒ C is 1 ohm and the…

A: Consider the formula for the value of the resistance. R2=R11+αt2-t1 Here, R2 is the resistance at…

Q: resistance of 20Ω. Determine the resistance of a wire of the same length and material if the…

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Q: b) Find the value of the resistance and its error part (give your results in two form such that %…

A: B)

Q: Determine the resistance of 75 feet of No. 17 gauge aluminum wire. Note: Use at least 4 decimal…

A: In this question we have to calculate resistivity of a aluminium wire.

Q: a) Determine the colour bands and indicate the resistance range values (minimum - maximum) for each…

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Q: In Figure 3.5, is there a linear relationship between current and voltage? In Figure 3.5, what is…

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Q: 3) Calculate the resistance of a cross-sectional area A Od mm) and resistivity A(50*10 Fl the wire…

A: Given: The length of the wire is, l=100 m Cross sectional area, A=0.1 mm2=0.1×10-6 m2 Resistivity of…

Q: The resistance of Copper conductor at 20 oC is 330 Ω. Find Resistance at 700oC.

A: As per the guidelines, we supposed to answer one question at a time so please ask other questions…

Q: "What happens to the resistance of a piece of wire, if it is strtched to double its length?"…

A: Let the initial resistance of the wire be R. It is given by the expression as shown below: When the…

Q: a) Find the value of resistor using colour code (Brown-Orange-Gold-Silver). b) Suppose the measured…

A: a) Given, Resistor color code is Brown-Orange-Gold-Silver

Q: What is the resistance of 600 ft length of #10 AWG copper wire

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Q: 6. A length of a copper telephone line has a resistance of 27 ohms at 20°C. What is the resistance…

A: Resistance: This is the property of a material that resists the flow of current and its unit is the…

Q: 1. Why resistance is an important property in the field of electronics and electricity?

A: According to guidelines we need to solve only first question. According to question we have to…

Q: The resistance of a wire at 0° Celsius is measured to be 182. If the temperature increased to 25°…

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Q: 6. A length of a copper telephone line has a resistance of 24 ohms at 20°C. What is the resistance…

A: Note: As per our policy we can solve only one question, please re-upload the remaining question as a…

Q: he resistance of a given device is 46ohms at 25degrees celcius. If the temperature coefficient of…

A: Given that R25°C=46 ohmα20°C=0.00454Rt°C=92 ohm calculate the temperature co-efficient at 0 degree…

Q: c) Two of you have been given two instruments with the units in ohms, your colleague measures the…

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Q: Find the conductance of 100 ft of No. 15 AWG iron wire, which has a diameter of 64 mils. The…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: The resistance of a given electric device is 46 ohms at 25 °C. If the temperature coefficient of…

A: In this question The resistance of a given electric device is 46 ohms at 25 °C. If the temperature…

Q: A copper bar has a length of 20 ft, width of 4 inches and thickness of 0.5 inch. If the resistivity…

A: Given that  L=20 ftW=4 incht=0.5 inchρ=10.37 Ω-CM/ft

Q: It is desired to wind a milliameter shunt using a no. 40 enameled copper wire with a resistance of…

A: To calculate the length of wire required to be used as a shunt

Q: A rectangular bus bar has a cross-section of ½ by 1 ¾ inch. And is 25ft long. What is its resistance…

A: Given: Cross-section of ½ by 1 ¾ inch25 feet=7.62 mT=20oC

Q: If the resistance of a certain wire is 4.068 ohms per 1000, what is the length of a piece of this…

A: If the resistance of a certain wire is 4.068 ohms per 1000 meter, what is the length of a piece if…

Q: The resistance of a wire is 5Ω at 50°C and 6Ω at 100°C. The resistance of the wire at 0°C will be?

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Q: explain the detaials of the material usede to make solar panels list

A: Aluminium Frame These are used to fix and seal the solar battery components. It enhances the…

Q: The resistance of 120 mtrs. of wire is 12Ω. What is its conductance?

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Q: The length and diameter of copper wire are found to be 100 and 0.002 m respectively consider that…

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Q: 4. Calculate the resistance of a 100 m length of wire having a uniform cross - sectional area of…

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Q: What is the relationship of voltage,current and resistance? Explain

A: Introduction - Voltage - Voltage is defined as the charge differential between two spots. Current -…

Q: The resistance of a copper wire at 20 deg. C is 30 ohms. If the temperature coefficient of copper at…

A: In this question we will find resistance of copper at given temperature with known values..

Q: A brass wire, that has a cross sectional area of 0. 12m² and its resistance is 80µ ohms. Find the…

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Q: The resistance of a wire at 0° Celsius is measured to be 172. If the temperature increased to 27°…

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Q: Calculate the resistance of a 100 m length of wire having a uniform cross – sectional area of 0.02…

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Q: The resistance of a 10 ft length of a resistor material having a cross section of 0.00204 in2is 4.1…

A: Given data: l1=10 ft=120 inchl2=12 ft=144 inchR1=4.1 ΩR2=7.1 Ω The expression for the resistance is…

Q: a. What is the wire size (AWG) of the 1st wire? b. What is the wire size (AWG) of the 2nd wire? c.…

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Q: The resistance of a silver  wire at 300C is 3 ohms. The temperature coefficient of resistance of…

A: R=Rref(1+α(T−Tref)) where,     R = the resistance at temperature, T    Rref = the resistance at…

Q: Find the resistance of a piece of 8 AWG lead wire 600ft long. Consider the temperature to be 20…

A: Given parameters: Wire Guage - 8 AWG Length of wire - 600ft long Temperature - 20 degree Celcius…

Q: Answer the following questions briefly. Use illustrations, drawings or pictures to justify your…

A: Use illustrations, drawings to justify your answer. Using Ohm’s Law, what is the relationship of…

Q: . A wire with a resistance of 65 ohms  has a length of 125 ft. The wire is stretch uniformly to 150…

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Q: piece of wire has a resistance of R. Another piece of wire has twice the length and also twice the…

A: Let subscripts 1 and 2 indicates resistance of the first and second wire. Resistance of resistor =…

Q: 2. The resistance of a certain conductor , 300 mil diameter and 20 ft long is 200 x10^-3 Q.…

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Q: Find the resistance of a piece of 8 AWG lead wire 600ft long. Consider the temperature to be 20…

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Q: 1. What is the largest deviation in Table 4.3? Would it ever be possible to find a value that is…

A: The Table 4.3 is shown below:

Q: The electrical resistance of a wire depends on few factors. Which option from the table3 that best…

A: Write the formula for the electrical resistance of the wire. Where ρ is the resistivity of the…

Q: 25. The resistance of a copper wire at 30 deg. C is 50 ohms. If the temperature coefficient of…

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Q: What is the resistance of a piece of copper wire that has a size of 2.5 mil-feet if 1 mil-foot has a…

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Q: The EMF of a battery is 4.5 volts. When it is connected to an external resistance of 12 ohms, the…

A: Given EMF E=4.5 V External resistance R=12 Ω The potential difference across an external resistance…

Q: A wire has a resistance of 50 ohms. How much is dissipated in the wire if it carries a current of…

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Photoelectric

The photoelectric effect occurs when light (or similar incident radiation, including X-rays) falls on material together with a metal plate and causes it to emit electrons. The discovery of the photoelectric effect led to important new theories (and to a Nobel Prize for Albert Einstein). Photoelectric cells, or photocells, are utilized in burglar-alarm light detectors and garage-door openers (each employs a through-beam of light this is broken when something movements throughout it), and also to play soundtracks on film movies (in which a light beam shines through the soundtrack encoded at the film and is "read" with the aid of the photocells).