A student connects a cell of emf `epsilon_(2)` and internal resistance `r_(2)`, with a cell of emf `epsilon_(1)` such that their combinationhas a net internal resistance less then `r_(1)`. This combination in the connected across a resistance `R`. Draw a circuit of the 'set up' and obtain an expression for the current flowing through the resistance `R`

Explanation

To solve the problem, we will follow these steps:

### Step 1: Understand the Configuration
We have two cells connected in parallel, one with emf \( \epsilon_1 \) and internal resistance \( r_1 \), and the other with emf \( \epsilon_2 \) and internal resistance \( r_2 \). The goal is to find the current flowing through an external resistance \( R \) when these cells are connected.

### Step 2: Draw the Circuit Diagram
The circuit diagram will look like this:

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