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gmnyarko
Aug 10, 2012, 04:44 AM
An electric bell takes a current of 0.2A from a battery of two cells connected in series.each cell has an emf of 1.5V and an internal resistance of 1.0ohms.calculate the effective resistance of the bell and what current would the bell take if the cells were arranged in parallel.

kakkarod
Aug 17, 2012, 02:29 AM
e.r is 2 ohm
And in parallel also the same will be the current (voltage received by cells is 1.7 volt)... plsss cross check