Question

A group of researchers from IIT Kharagpur has been
conferred the 'Gandhian Young Technological Innovation
Awards 2020' for developing a mechanism for generating
electricity from wet clothes left under sunlight to dry in
which they manage to develop a potential difference by
using devices.The device has been tested in a remote
village where around 50 wet clothes were left for drying by
washer men.these clothes were connected to a
commercial supercapacitor which discharged electricity of
around 10 volt. This stored energy is enough to glow a
white LED bulb for more than an hour.The clothes we
wear are made from cellulose-based textile which has a
network of nano-channels. Ions in saline water can move
through this interlace fibrous nano-scale network by
capillary action inducing an electric potential in the
process.
Q.1.Can ions produce electricity without any potential
difference?
Q.2.How many volt is required to glow a white LED for
more than 2 hrs

Answer 1

ANSWER:

1. Ions in saline water can move

through this interlace fibrous nano-scale network by

capillary action inducing an electric potential in the

process. So Yes.

2. Around 20 Volts.

HOPE THIS HELPS!