Correct Answer : Option (B) - University of California, Los Angeles
The researchers at the University of California, Los Angeles (UCLA), US created a 3D-printed device that that can produce electricity from falling snow. The device is small, inexpensive, thin, flexible like a plastic-sheet and can work anywhere because it provides its own power and does not need batteries. The research study was published in the journal 'Nano Energy' and UCLA's Richard Kaner is the senior author of it. The device termed as snow-based triboelectric nanogenerator or snow TENG, generates charge through static electricity and produces energy from electron-exchange.