question_answer

If each resistance in the figure is of 9 W then reading of ammeter is                                         [RPMT 2000]

A)         5 A                                    

B)         8 A

C)         2 A                                    

D)         9 A

Correct Answer: A

Solution :

                                         Equivalent resistance \[R=\frac{9}{9}=1\Omega \] Current \[i=\frac{9}{1}=9A\]         Current passes through the ammeter = 5A.