question_answer

The resistance of an ammeter is \[13\Omega \]and its scale is graduate for a current upto 100 amps. After an additional shunt has been connected to this ammeter it becomes possible to measure current upto 750 amperes by this meter. The value of shunt-resistance is

A) \[2\Omega \]

B) \[0.2\Omega \]

C) \[2k\Omega \]    

D) \[20\Omega \]