A battery of emf 3V and internal resistance r is connected in series with a resistor of `55 Omega` through an ammeter of resistance `1 Omega`. The ammeter reads 50 mA. Draw the circuit diagram and calculate the value of r.
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To solve the problem step by step, we will follow these instructions:
### Step 1: Draw the Circuit Diagram
We need to draw the circuit diagram based on the given information. The circuit consists of:
- A battery with an emf of 3V.
- An internal resistance \( r \) of the battery.
- An external resistor of \( 55 \, \Omega \).
- An ammeter with a resistance of \( 1 \, \Omega \).
...
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