question_answer

The ammeter will read the value of current:

A)        \[3A\]                                  

B)  \[\frac{10}{3}A\]

C)                  \[30A\]                               

D)  \[\frac{100}{3}A\]

Correct Answer: A

Solution :

Part ACBDA behaves as similar as balance conditional wheatstone bridge So, resistance path located by X - sign becomes open circuited and does not carry any current through it, \[{{R}_{AB}}=\frac{10}{3}\] (Use Wheatstone bridge) \[i=\frac{10}{10/3}=3A\]