A(n) _____ is one in which some built-in asymmetry draws the excited electrons away and delivers them to an external circuit before they can relax.
a. electromagnetic device
b. nuclear power plant
c. photovoltaic device
d. conventional power plant
Answer (2)
The correct answer is a photovoltaic device, which converts sunlight into electricity by exciting electrons in a semiconductor and directing them into an external circuit. This process involves the use of a p-n junction, which creates built-in asymmetry that helps in transporting excited electrons. Photovoltaic devices are essential in renewable energy applications, such as solar panels and solar-powered devices.
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A photovoltaic device converts sunlight into electricity by exciting electrons in a semiconductor. This process involves directing excited electrons to an external circuit, where they generate electric current. Examples include solar panels and solar-powered calculators. ;
