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A galvanometer having coil resistance 10 Ω shows a full scale deflection for a current of 3mA. For it to measure a current of 8A, the value of the shunt should be :

1. 3 × 10 –3 Ω
2. 4.85 × 10 –3 Ω
3. 3.75 × 10 –3 Ω
4. 2.75 × 10 –3 Ω

Correct answer: 3.75 × 10 –3 Ω

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