ICSE Class 10 - Household Wiring System Videos

• A bulb R=100W run  for  1 hour everyday. Find  the bill for  30 day. (1 unit =7 )    
• Why are the wires in our houses made of copper and not iron. Prove with an experiment that copper is a better conductor of heat than iron? 
• state two advantages of the ring system
• What is phase wire in an electric cable

Queries asked on Sunday & after 7 pm from Monday to Saturday will be answered after 12 pm the next working day.