A cell of e.m.f. 1.5 V, internal resistance 1 `Omega ` is connected to the resistors of 4 `Omega ` and `20 Omega ` in series. Draw a circuit diagram and calculate :
the p.d. across each resistor

Explanation

To solve the problem, we will follow these steps:

### Step 1: Draw the Circuit Diagram
We have a cell with an e.m.f. of 1.5 V and an internal resistance of 1 Ω connected to two resistors (4 Ω and 20 Ω) in series. The circuit diagram can be represented as follows:

```
+----[ 4 Ω ]----[ 20 Ω ]----+
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