Question

The filament of a bulb takes a current 100 mA when
potential difference across it is 0.2 V. When the
potential difference across it becomes 1.0 V, the
current becomes 400 mA. Calculate the resistance of
the filament in each case and account for the
difference.
how to do it​

Answer 1

Answer:

Bayer's test : It is a test which is used to identify the presence of the double bond in the given unsaturated compounds. In the Bayer's test reaction of unsaturated compound having double bonds is reacted with the cold dilute alkaline potassium permanganate to form vicinal glycols or 1,2-diols.