Series and Parallel Circuit

In series 

  • The charged particles move in only one path so the current i.e. charge/time will be same in all the appliances connected
  • The ammeter which is used to measure current is connected in series
  • The resistance of ammeter is zero ideally to avoid any potential drop
  • The total current should pass through the fuse which is used to protect the appliances, as the current exceeds the limit of fuse, it gets heated and melts.
  • The potential drops as the current passes through the appliances.
In parallel
  • The charged particles have different paths to pass, so the total current divides in all the paths
  • All the appliances are connected to the same potential terminals, so the potential difference is same across all the appliances.
  • Voltmeter which is used to measure potential difference is connected in parallel
  • The resistance of voltmeter is infinite ideally to avoid any current through it.

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