Description : What do we use to generate electricity?
Answer : Use wind turbines. In a windy seashore we set up some wind turbines. But when the place is not windy we got no electricity.
Description : How Household Use Electricity And Energy
Answer : I have often wondered what the average use of energy of appliances is. Here is a breakdown by percentage usage of each consuming appliance taken from a sampling of US households. Refrigerators 13.7% ... Telephone 0.2 Rechargeable Tools 0.2 Humidifier 0.1 Automobile Block Heater 0.0 Residual 7.3
Description : Why do you need a closed circuit for electricity to flow?
Answer : When the circuit is closed , a potential diffrence is realized between the two nodes connected .This causes flow of electrons and convection current.
Description : How can a magnetic field be used to generate an electric current?
Answer : Magnetic field can be used to generate electric current on a condition that it is on a rate of changing magnetic flux. (Faraday's law)
Description : How the electricity is transmitted?