Question

`A_(1), A_(2) and A_(3)` Are the ammeters and `A_(2)` reads 0.5A. (i) What are the readings of ammeters `A_(1)` and `A_(3)` ? (ii) What is the total resistance of the circuit ?

Answer 1

(i) P.D. across `3 Omega`
`6 xx0.5 = 3 xx I_(3) =1.0A`
Current through `A_(1)=0.5+1.0 =1.5A`
Effective resistance of circuit `=(6xx3)/(6+3) + 2=4 Omega`