Cells In Series And In Parallel

Given:
Total number of cells = 10,
EMF of each cell = ,
Internal resistance of each cell = ,
External resistance, ,
Number of wrongly connected cells = 2.

Step-by-step Explanation:

Step 1: Determine the effective EMF of the battery combination.

In series, correctly connected cells add their EMFs, whereas wrongly connected cells subtract their EMFs.

Correctly connected cells =

Net EMF of combination ( ):

Step 2: Calculate total internal resistance:

All cells are in series, thus internal resistances add up directly. Total internal resistance ( ):

Step 3: Find the total resistance of the circuit:

Total resistance ( ) = Internal resistance + External resistance:

Step 4: Calculate the current ( ) through the resistor using Ohm’s law:

Final Conclusion:
The current through the resistor is 0.6 A.