CBSE Class 10 Answered
battery
Asked by | 23 Mar, 2012, 07:49: PM
Expert Answer
A battery has two ends -- a positive terminal (cathode) and a negative terminal (anode). If you connect the two terminals with wire, a circuit is formed. Electrons will flow through the wire and a current of electricity is produced. Inside the battery, a reaction between chemicals take place. But the reaction takes place only if there is a flow of electrons. Batteries can be stored for a long time and still work because the chemical process doesn't start until the electrons flow from the negative to the positive terminals through a circuit.
Answered by | 24 Mar, 2012, 10:17: AM
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