Question

aluminium wires are preferred for overhead cables.
200 V bulb takes a current of 0.2 A. The length of
its filament is 22 cm and the specific resistance of the
material of the filament is 7 * 10 cm. Find the
radius

of the filament (16 22/7). Ans.7 x 10 cm
.​

Answer 1

Explanation:

It tells the story of two young children named Tommy and Margie who live in the year 2157, where children get an education through computers at their home. One day they come through a printed book and learn something about the school that existed hundreds and hundreds of years ago