A copper wire has a resistance of 2.5 ohms. What will be the resistance of a silver wire having a diameter half of the copper wire and length of one- fourth of the copper wire? Provided that the resistivity of the silver wire is 25 times that of the copper wire. Answer in one decimal place only. *

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Q: Problem 5. Calculate the cross-sectional area, in mm², of a piece of copper wire, 40 m in length and…

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Q: 60W-100V tungsten lamp has a resistance of 20 ohm at air temperature (0◦C). What is the  rise in…

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A: string efficiency can be calculated using the following formula

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A: I. Conductors - A conductor readily carries electricity because it provides minimal  resistance to…

Q: A 81 fC is placed inside a cube. What is the amount of electric flux passing through each side?(…

A: Q = 81 fC = 81×10-15 C consider a cube and a charge of magnitude Q placed inside it. total flux…

Q: 3. What is the resistance of a piece of material whose length is 2 cm, area is 4 cm² and resistivity…

A: Given a piece of material with, Length, l = 2 cm Area, A = 4 cm2 Resistivity, ρ=60×10-5 Ω-m

Q: What will be length (in m) of a 10 ohm wire, when the resistivity of the wire is 0.1 ohms-m and the…

A: Given, A wire having Resistance, R= 10 ohm Resistivity of the wire, ρ=0.1 ohms-m  Diameter of the…

Q: What is the diameter of a 1.00-m length of tungsten wire whose resistance is 0.32 2? (the…

A: Given data, A tungsten wire have L=1.00 mR=0.32 Ωρ=5.6×10-8 Ωm

Q: 3. Determine the resistance of a bus bar of copper if the length is 85 feet long and the diameter is…

A: In this question we will find resistance...

Q: show complete solutions please thank u A copper conductor measures 0.60 ohm at 20 degrees…

A: In this question, choose the correct option find the resistance R at the temperature T= 30° if…

Q: 41. A silicon solar cell produces about a. 0.5 volts/cell b. 1.0 volts/cell C. 1.5 volts/cell d. 2.2…

A: Approximate value of the voltage across Silicon diode is 0.5 to 0.7 volt per cell so the closest…

Q: (b) A new metallic material was found and was named as Material XX. Scientist has no clue on the…

A: Given, Material name is XX. If we don't the electrical properties of material, then we can't use the…

Q: Identify the statement from the following when the inductance can have high value. O a. All the…

A: Inductance  L= uN^2A/L  U is permeability  L is the length of the coil A is the area of the coil  N…

Q: 2. Determine the nominal resistance values of these resistors, given their band colors, and also…

A: Carbon resitance or color code resistancs is calculated  as given below  by using table

Q: Resistivity of a wire depends on length material O all of the above. O O O

A: Resistivity of the wire calculated as : R=ρlAwhere,ρ = resistivityL = LengthA= area

Q: A copper wire has a diameter of 0.5 mm and a resistivity of 1.68 x 10^-8 Ω-m. What will be the…

A: Length of copper wire is calculated as if given resistance is 2 ohm

Q: The length of a copper wire is increased by 2 %. Calculate the percentage change (in %) in it's…

A: Given, The length of a copper wire is increased by 2 %. The percentage change (in %) in it's…

Q: 3- For a (1 kQ) copper composition resistor with a temperature coefficient at (20°C) 0.00393,…

A: The solution can be achieved as follows.

Q: A silver wire has a resistance of 2.5 ohms. What will be the resistance of manganin wire having a…

A: Given, R1=2.5 Ωd2=d12l2=l14ρ2=25ρ1 For silver wire, R1=ρ1l1A1 For manganin wire, R2=ρ2l2A2

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A: For the given specifications of the copper wire, the value of the length needs to be calculated.

Q: A wire has a resistance 10 ohm. It is stretched by one tenth of the original length. Then itsi…

A: Given, a wire has a resistance 10 ohm. It is stretched by one tenth of the original length. Let,…

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A: Electrons are negatively charged particles and the charge of a single electron is  In this case,…

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A: Here, we have given an electrical circuit, for which we have to calculate the power consumed by each…

Q: A certain resistance was measured to be 30 ohm at 20°C and 35.1 Ohm at 81°C. Find the temperature…

A: Step-1->We have Resistance at at 30 ohmandResistance at at 35.1…

Q: The Wheatstone bridge has been in use longer than almost any other electrical measuring instrument.…

A: The Wheatstone bridge circuit will be used to measure an unknown resistance to an accuracy of about…

Q: Problem 5. Calculate the cross-sectional area, in mm², of a piece of copper wire, 40 m in length and…

A: it is asked to find the cross sectional area of given copper wire in mm2

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).