JEE Main 2022 · 28 Jun · Shift 1 · Physics Q53

PhysicsInteger+4 / -1Question 53 of 90

Current measured by the ammeter (A) in the reported circuit when no current flows through 10 $\Omega$ resistance, will be ______ A.

Your answer

Answer and worked solution

Official answer: 10

Balanced bridge. No current in 10 Ω needs $\frac R4=\frac36$ , so $R=2$ Ω.

Resistance. Branches of $2+4=6$ Ω and $3+6=9$ Ω in parallel: $3.6$ Ω.

Current. $\dfrac{36}{3.6}=10$ A.

Answer: 10

JEE Main 2022 · 28 Jun · Shift 1, Physics question 53