What resistance must be connected across a galvanometer of 50.0 ohm resistance which gives full scale deflection with 2.0mA current to convert it into an ammeter of range 10.0A?
Correct answer: B. 0.01 Ω
- A. 105 Ω
- B. 0.01 Ω
- C. 2.5 Ω
- D. 3.9 Ω
- E. 4.7 Ω
Explanation
Following formula is use to calculate shunt resistance:=(2 x 10-3 x 50)/(10 - 2 x 10-3)=0.1 / 9.998=0.01 ohmSo the correct option is B.
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