NEET Physics Current Electricity Questions Solved

A cell of emf E and internal resistance r is connected to two external resistances R1and R2 and a perfect ammeter. The current in the circuit is measured in four different situations:

(i) without any external resistance in the circuit 

(ii) with resistance R1 only

(iii) with R1and R2 in series combination

(iv) with R1and R2 in parallel combination                                                     2mark

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