Current measured by the ammeter A in the reported circuit when no current flows through 10 Ω resistance, will be _____ A .

Step-by-step solution

This is a Wheatstone circuit. For the current to be zero in 10   Ω the Wheatstone circuit should be balanced. Therefore, R 3 = 4 6 ⇒ R = 2   Ω Now, the equivalent resistance across the battery will be, R e q = 2 + 4 × 3 + 6 2 + 4 + 3 + 6 = 3 . 6   Ω Therefore, the current measured by the ammeter is i = V R = 36 3 . 6 = 10   A .