A galvanometer having a coil resistance of \[100\Omega \] gives a full scale deflection, when a current of 1 mA is passed through it. The value of the resistance, which can convert this galvanometer into ammeter giving a full scale deflection for a current of 10A, is :-
[JEE Main Solved Paper-2016 ]
A)\[3\Omega \]
B)\[0.01\Omega \]
C)\[2\Omega \]
D)\[0.1\Omega \]
Correct Answer:
B
Solution :
P.D. should remain same \[\text{1mA}\times \text{1}00=\text{9}.\text{999R}\] \[R=\frac{1}{99.99}=0.01R\]