Two batteries of emf and internal resistances respectively are connected in parallel as shown in the figure.
1. | The equivalent emf of the two cells is between |
2. | The equivalent emf is smaller than |
3. | The is given by always |
4. | is independent of internal resistances |
(a) Hint: Use the concept of the parallel combination of cells.
Step 1:
The equivalent emf of this combination is given by:
Step 2:
This suggests that the equivalent emf of the two cells is:
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