A galvanometer of coil resistance 20Ω gives a full scale deflection with a current of 5…
Physics · JEE Main · NTA Exams — Current Electricity
A galvanometer of coil resistance 20Ω gives a full scale deflection with a current of 5 mA. What arrangement should be made in order to measure current upto 1.0 A.
- add a series resistance of 2Ω
- add a parallel resistance of 2Ω
- add a series resistance of 0Ω
- add a parallel resistance of 0.1Ω
Answer
(D) add a parallel resistance of 0.1 Ω
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