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. *

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: 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: If a piece of 1.5mm² copper wire has a resistance of 0.012, what is its length? (Given: Resistivity…

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

Q: What will be the total negative charge when an assembly of 123 electrons are present? Show detailed…

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

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).